assumption synonym | Thesaurus.com

Main Entry:	assumption
Part of Speech:	noun
Definition:	taking something for granted; something expected
Synonyms:	acceptance, assuming, belief, conjecture, expectation, fancy, guess, hunch, hypothesis, inference, postulate, premise, presumption, shot, shot in the dark, stab, supposition, surmise, suspicion, theory, accepting, posit, postulation, presupposition, sneaking suspicion, supposal, theorization
Antonyms:	doubt, unexpected

* = informal/non-formal usage

Main Entry:	assumption
Part of Speech:	noun
Definition:	assuming possession, power
Synonyms:	acceptance, acquisition, adoption, appropriation, assuming, grab, seizure, undertaking, accepting, arrogation, embracing, shouldering, takeover, taking, taking on, taking up, usurpation

Main Entry:	assumption
Part of Speech:	noun
Definition:	arrogance
Synonyms:	brass, chutzpah, conceit, insolence, nerve, presumption, pride, sass*, self-importance, cockiness, imperiousness
Antonyms:	reality, genuineness, naturalness, realness

* = informal/non-formal usage

Main Entry:	brass
Part of Speech:	noun
Definition:	impulsiveness; nerve
Synonyms:	assumption, audacity, cheek, chutzpah, confidence, effrontery, gall, impertinence, impudence, insolence, presumption, rudeness, brashness
Antonyms:	caution, prudence, carefulness, circumspection

* = informal/non-formal usage

Main Entry:	expectancy
Part of Speech:	noun
Definition:	anticipation
Synonyms:	assumption, assurance, belief, calculation, confidence, conjecture, expectation, hope, likelihood, outlook, prediction, presentation, presentiment, presumption, probability, prospect, reliance, supposition, surmise, suspense, trust, view, looking forward, waiting

Main Entry:	expectation
Part of Speech:	noun
Definition:	belief, anticipation
Synonyms:	apprehension, assumption, assurance, calculation, chance, confidence, conjecture, design, expectancy, fear, forecast, hope, intention, likelihood, motive, notion, outlook, possibility, prediction, presumption, probability, promise, prospect, reliance, supposition, surmise, suspense, trust, view, looking forward

Main Entry:	guess
Part of Speech:	noun
Definition:	belief, speculation
Synonyms:	assumption, ballpark figure, conclusion, conjecture, deduction, divination, estimate, fancy, feeling, hunch, hypothesis, induction, inference, judgment, notion, opinion, postulate, prediction, presumption, reckoning, shot, shot in the dark, stab*, supposition, surmise, suspicion, theory, thesis, view, guesstimate, guesswork, postulation, presupposition, sneaking suspicion, supposal, surmisal
Antonyms:	calculation, measurement

* = informal/non-formal usage

Main Entry:	hope
Part of Speech:	noun
Definition:	longing; dream
Synonyms:	Utopia, achievement, ambition, anticipation, aspiration, assumption, belief, bright side, buoyancy, castles in air, concern, confidence, daydream, dependence, desire, endurance, expectancy, expectation, faith, fancy, fool's paradise, fortune, gain, goal, greedy glutton, hopefulness, light at end of tunnel, optimism, pipe dream, promise, promised land, prospect, reliance, reverie, reward, rosiness, sanguineness, security, stock, thing with feathers, wish
Antonyms:	despair, disbelief, discouragement, hopelessness, pessimism

* = informal/non-formal usage

Main Entry:	hypothesis
Part of Speech:	noun
Definition:	theory
Synonyms:	antecedent, assignment, assumption, axiom, basis, belief, conclusion, condition, conjecture, data, deduction, demonstration, derivation, explanation, foundation, ground, guess, inference, interpretation, layout, philosophy, plan, position, postulate, premise, principle, proposal, proposition, rationale, reason, scheme, shot in the dark*, speculation, suggestion, supposition, surmise, system, term, theorem, thesis, apriority, attribution, lemma, presupposition, starting point, tentative law
Antonyms:	measurement, proof, reality, truth, calcualtion

* = informal/non-formal usage

Main Entry:	implication
Part of Speech:	noun
Definition:	association, suggestion
Synonyms:	assumption, conclusion, connection, connotation, entanglement, guess, hint, hypothesis, indication, inference, innuendo, intimation, involvement, link, meaning, overtone, presumption, ramification, reference, significance, undertone, union, incrimination, signification

Main Entry:	inference
Part of Speech:	noun
Definition:	conclusion, deduction
Synonyms:	assumption, conjecture, corollary, guess, hint, interpretation, presumption, reading, reasoning, supposition

Main Entry:	nerve
Part of Speech:	noun
Definition:	daring, boldness
Synonyms:	assumption, assurance, audacity, backbone, brass, bravery, cheek, chutzpah, confidence, coolness, courage, crust, determination, effrontery, endurance, energy, face, firmness, force, fortitude, gall, grit, guts, hardihood, heart, impertinence, impudence, insolence, intestinal fortitude, mettle, might, moxie, pluck, presumption, resolution, sauce, spirit, spunk, starch, stomach*, temerity, vigor, will, brazenness, fearlessness, gameness, hardiness, intrepidity, steadfastness
Antonyms:	fear, modesty, shyness, timidity

* = informal/non-formal usage

Main Entry:	opinion
Part of Speech:	noun
Definition:	belief
Synonyms:	assessment, assumption, attitude, conception, conclusion, conjecture, estimate, estimation, eye, fancy, feeling, guess, hypothesis, idea, impression, inclination, inference, judgment, mind, notion, persuasion, point of view, postulate, presumption, reaction, sentiment, slant, speculation, supposition, surmise, suspicion, take, theorem, theory, thesis, think*, thought, view, viewpoint, imagining, presupposition, say-so
Antonyms:	reality, truth

* = informal/non-formal usage

Main Entry:	preconception
Part of Speech:	noun
Definition:	idea formed before event occurs or facts are received
Synonyms:	assumption, bias, delusion, illusion, inclination, notion, predisposition, prejudice, presumption, preconceived idea, prejudgment, prepossession, presupposition
Antonyms:	ignorance

Main Entry:	premise
Part of Speech:	noun
Definition:	hypothesis, argument
Synonyms:	assertion, assumption, basis, evidence, ground, postulate, presumption, proof, proposition, supposition, thesis, apriorism, posit, postulation, presupposition
Notes:	a premise is a statement that is assumed to be true and from which a conclusion can be drawn; premises are land and buildings together considered as a place of business
Antonyms:	fact, reality, truth

Main Entry:	supposition
Part of Speech:	noun
Definition:	guess, belief
Synonyms:	assumption, condition, conjecture, doubt, guessing, hunch, hypothesis, idea, likelihood, notion, opinion, postulate, premise, presumption, shot in the dark*, speculation, suppose, surmise, suspicion, theory, thesis, view, apriorism, guesstimate, guesswork, posit, postulation, presupposition, rough guess, sneaking suspicion, stab in the dark
Antonyms:	fact, knowledge, proof, reality

* = informal/non-formal usage

Main Entry:	surmise
Part of Speech:	noun
Definition:	guess, conclusion
Synonyms:	assumption, attempt, conjecture, deduction, hunch, hypothesis, idea, inference, notion, opinion, possibility, presumption, speculation, supposition, suspicion, theory, thought, guesstimate, guesswork, sneaking suspicion
Antonyms:	calculation, knowledge, measurement

Main Entry:	tenet
Part of Speech:	noun
Definition:	belief, principle
Synonyms:	article of faith, assumption, canon, conception, conviction, credo, creed, doctrine, dogma, faith, impression, maxim, opinion, persuasion, position, precept, presumption, profession, rule, system, teaching, thesis, trust, view, self-conviction

Main Entry:	theorem
Part of Speech:	noun
Definition:	explanation based on hypothesis and experiments
Synonyms:	assumption, axiom, belief, deduction, dictum, doctrine, formula, fundamental, law, postulate, principle, proposition, rule, statement, theory, thesis, principium
Antonyms:	fact, proof

Main Entry:	theory
Part of Speech:	noun
Definition:	hypothesis, belief
Synonyms:	approach, argument, assumption, base, basis, code, concept, conditions, conjecture, doctrine, dogma, feeling, foundation, grounds, guess, hunch, idea, ideology, impression, method, outlook, philosophy, plan, position, postulate, premise, presentiment, presumption, proposal, provision, rationale, scheme, shot, speculation, stab, suppose, supposition, surmise, suspicion, system, theorem, thesis, understanding, codification, formularization, guesswork, supposal, systemization
Antonyms:	certainty, fact, proof, reality