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indispensable - 20 thesaurus results
Main Entry: indispensable
Part of Speech: adjective
Definition: necessary
Synonyms: basal, basic, cardinal, crucial, essential, fundamental, imperative, key, needed, prerequisite, primary, required, requisite, vital, necessitous, needful
Antonyms: dispensable, needless, nonessential, redundant, superfluous, unnecessary
Main Entry: basic
Part of Speech: adjective
Definition: elementary, fundamental
Synonyms: basal, capital, central, chief, elemental, essential, indispensable, inherent, intrinsic, key, main, necessary, primary, primitive, principal, radical, underlying, vital, substratal
Antonyms: additional, extra, nonessential, outside, peripheral, secondary, inessential
Main Entry: cardinal
Part of Speech: adjective
Definition: important, key
Synonyms: basal, basic, central, chief, essential, first, foremost, fundamental, highest, indispensable, leading, main, overriding, paramount, pivotal, preeminent, primary, prime, principal, ruling, vital, constitutive, greatest, overruling
Antonyms: insignificant, minor, negligible, secondary, unimportant, inessential
Main Entry: fundamental
Part of Speech: adjective
Definition: basic, important
Synonyms: axiomatic, basal, bottom, cardinal, central, constitutional, crucial, elemental, elementary, essential, first, indispensable, integral, intrinsic, key, major, necessary, organic, original, paramount, primary, prime, primitive, primordial, principal, radical, requisite, rudimentary, significant, structural, supporting, theoretical, underlying, vital, axiological, bottom-line, constitutive, foundational, grass-roots, meat-and-potatoes, substratal, substrative, sustaining, underived
Antonyms: additional, advanced, auxiliary, extra, minor, secondary, subordinate, trivial, unimportant
Main Entry: inherent
Part of Speech: adjective
Definition: basic, hereditary
Synonyms: built-in, characteristic, congenital, constitutional, deep-rooted, deep-seated, distinctive, elementary, essential, fixed, fundamental, genetic, immanent, implicit, inborn, inbred, indigenous, indispensable, individual, ingrained, inherited, innate, inner, instinctive, integral, integrated, internal, intimate, intrinsic, inward, latent, native, natural, original, part and parcel, resident, subjective, connate, in the grain, inbuilt, indwelling, running in the family, unalienable
Notes: the word innate means 'inborn' and should apply to living things; inherent is 'essential, intrinsic' and applies best to nonliving things like ideas
Antonyms: acquired, external, extrinsic, incidental, learned, added
Main Entry: key
Part of Speech: adjective
Definition: essential, important
Synonyms: basic, chief, crucial, decisive, fundamental, indispensable, leading, main, major, material, pivotal, primary, principal, vital
Antonyms: insignificant, nonessential, unimportant, inessential
Main Entry: life-and-death
Part of Speech: adjective
Definition: extremely important
Synonyms: consequential, critical, crucial, determining, essential, imperative, important, indispensable, meaningful, paramount, pivotal, serious, significant, urgent, vital, all-important, earth-shaking, earth-shattering, life or death, of vital importance, vitally important
Main Entry: mandatory
Part of Speech: adjective
Definition: required, necessary
Synonyms: binding, commanding, compelling, compulsory, de rigueur, essential, forced, imperative, imperious, indispensable, involuntary, obligatory, requisite, compulsatory, irremissible, needful
Antonyms: optional, unnecessary, voluntary
Main Entry: prerequisite
Part of Speech: adjective
Definition: necessary
Synonyms: essential, expedient, imperative, important, indispensable, mandatory, obligatory, required, requisite, vital, called for, necessitous, needful, of the essence
Antonyms: optional, unnecessary, voluntary
Main Entry: required/requisite
Part of Speech: adjective
Definition: necessary
Synonyms: appropriate, compulsory, deserved, due, enforced, essential, imperative, imperious, indispensable, just, mandatory, needed, obligatory, prerequisite, prescribed, recommended, right, rightful, set, suitable, unavoidable, vital, called for, compulsatory, condign, demanded, needful
Antonyms: nonessential, optional, unnecessary
Main Entry: underlying
Part of Speech: adjective
Definition: fundamental, latent
Synonyms: basal, basic, bottom, cardinal, concealed, critical, crucial, elemental, elementary, essential, hidden, indispensable, intrinsic, lurking, necessary, nitty-gritty*, nub, primary, prime, primitive, radical, root, veiled, vital, bottom-line, needful, substratal
Antonyms: secondary
Main Entry: urgent
Part of Speech: adjective
Definition: needing immediate attention
Synonyms: burning*, capital, chief, clamant, clamorous, compelling, critical, crucial, crying*, demanding, driving, essential, exigent, foremost, heavy*, immediate, imperative, important, importunate, indispensable, insistent, instant, leading, momentous, necessary, paramount, persuasive, pressing, primary, principal, required, salient, serious, touchy*, vital, wanted, weighty*, called-for, demanded, hurry-up, impelling, life and death, top-priority, touch and go
Antonyms: moderate, unimportant, unnecessary
Main Entry: required
Part of Speech: adjective
Definition: necessary
Synonyms: appropriate, compulsory, deserved, due, enforced, essential, imperative, imperious, indispensable, just, mandatory, needed, obligatory, prerequisite, prescribed, recommended, requisite, right, rightful, set, suitable, unavoidable, vital, called for, compulsatory, condign, demanded, needful
Antonyms: optional, inessential
Main Entry: essential
Part of Speech: adjective
Definition: important, vital
Synonyms: capital, cardinal, chief, crucial, foremost, fundamental, imperative, indispensable, leading, main, necessary, needed, prerequisite, principal, required, requisite, wanted, constitutive, necessitous, needful, right-hand
Antonyms: accessory, auxiliary, minor, nonessential, secondary, subsidiary, unimportant, inessential
Main Entry: imperative
Part of Speech: adjective
Definition: necessary
Synonyms: acute, burning, clamant, clamorous, compulsory, critical, crucial, crying, essential, exigent, immediate, important, importunate, indispensable, inescapable, insistent, instant, obligatory, pressing, urgent, vital, no turning back
Antonyms: optional, secondary, unnecessary, voluntary, inessential
Main Entry: integral
Part of Speech: adjective
Definition: necessary, basic
Synonyms: component, constituent, elemental, essential, fundamental, indispensable, intrinsic, requisite
Antonyms: extrinsic, secondary, supplemental, unnecessary
Main Entry: necessary
Part of Speech: adjective
Definition: essential
Synonyms: basic, binding, cardinal, chief, compelling, compulsory, crucial, de rigueur*, decisive, elementary, exigent, expedient, fundamental, imperative, indispensable, mandatory, momentous, needed, obligatory, paramount, prerequisite, pressing, prime, principal, quintessential, required, requisite, significant, specified, unavoidable, urgent, vital, wanted, all-important, bottom-line, incumbent on, name of game, needful
Antonyms: unimportant, unnecessary, useless, inessential
Main Entry: vital
Part of Speech: adjective
Definition: essential
Synonyms: basic, cardinal, critical, crucial, decisive, fundamental, heavy*, imperative, important, indispensable, integral, key, meaningful, name, necessary, needed, nitty-gritty*, prerequisite, required, requisite, significant, urgent, bottom-line, coal-and-ice, constitutive, life-or-death, meat-and-potatoes, name-of-the-game, underlined
Antonyms: trivial, unimportant, inessential, insignficant
Main Entry: material
Part of Speech: adjective
Definition: important, relevant
Synonyms: applicable, apposite, apropos, big, cardinal, consequential, considerable, essential, fundamental, germane, grave, indispensable, intrinsic, key, meaningful, momentous, pertinent, primary, serious, significant, substantial, vital, weighty, ad rem, applicative, pointful
Antonyms: immaterial, irrelevant, unimportant, unsubstantial
Related Words
Main Entry: need
Part of Speech: noun, verb
Related
Adjectives:
instant, absorbing, called for, crying, destitute, equinecessary, essential, exigent, imperative, in demand, in request, in want of, indispensable, inopious, necessary, needful, prerequisite, pressing, required, requisite, urgent
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