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null - 9 thesaurus results
| Main Entry: | null |
| Part of Speech: | adjective |
| Definition: | ineffectual, valueless |
| Synonyms: | absent, bad, barren, imaginary, ineffective, inoperative, invalid, negative, nonexistent, nothing, null and void*, powerless, unavailing, unreal, useless, vain, void, worthless, characterless, inefficacious, unsanctioned |
| Antonyms: | effective, effectual, valid, valuable, worthwhile, worthy |
* = informal/non-formal usage
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
| Main Entry: | ineffective/ineffectual |
| Part of Speech: | adjective |
| Definition: | weak, useless |
| Synonyms: | abortive, barren, bootless, feckless, feeble, fruitless, futile, idle, impotent, inadequate, incompetent, indecisive, inefficient, inept, inferior, innocuous, inoperative, lame, limited, nugatory, null, null and void*, paltry, powerless, spineless, unable, unavailing, unfruitful, unproductive, unprofitable, unsuccessful, vain, void, withered, worthless, anticlimactic, defeasible, forceless, inefficacious, invertebrate, neutralized |
| Antonyms: | competent, effective, effectual, efficient, powerful, strong, useful |
* = informal/non-formal usage
| Main Entry: | nonexistent |
| Part of Speech: | adjective |
| Definition: | fictional, not real |
| Synonyms: | absent, airy, baseless, blank, chimerical, dead, defunct, departed, dreamlike, dreamy, empty, ethereal, extinct, flimsy, gone, groundless, hypothetical, illusory, imaginary, imagined, immaterial, insubstantial, legendary, lost, missing, mythical, negative, null, null and void*, shadowy, tenuous, unreal, unsubstantial, vacant, vague, vaporous, void, extinguished, fancied, few and far between, gossamery, hallucinatory, imponderable, passed away, passed on, perished, ungrounded, without foundation |
| Antonyms: | actual, existing, real, true, existent |
* = informal/non-formal usage
| Main Entry: | unimportant |
| Part of Speech: | adjective |
| Definition: | of no real worth, value |
| Synonyms: | beside the point*, casual, frivolous, frothy, immaterial, inconsequential, indifferent, insignificant, irrelevant, little, meaningless, minor, minute, negligible, nonessential, nothing*, nugatory, null, paltry, petty, picayune, second-rate*, slight, trifling, trivial, unnecessary, useless, worthless, zero*, zilch*, zip*, inconsiderable, low-ranking, of no account, of no consequence, shoestring* |
| Antonyms: | big, important, relevant, serious, useful, worthwhile |
* = informal/non-formal usage
| Main Entry: | ineffective |
| Part of Speech: | adjective |
| Definition: | useless |
| Synonyms: | abortive, barren, bootless, emasculate, feckless, feeble, fruitless, futile, idle, impotent, inadequate, incompetent, indecisive, ineffectual, inefficient, inept, inferior, innocuous, inoperative, lame, limited, nugatory, null, paltry, powerless, spineless, unable, unavailable, unavailing, unfruitful, unproductive, unprofitable, unsuccessful, vain, void, withered, worthless, anticlimactic, defeasible, forceless, inefficacious, neutralized, no go, no way, not effective, slack-spined |
| Notes: | ineffectual refers to a general or habitual lack of success in the carrying out of one's projects; ineffective refers to a specific or definite failure to perform a task or accomplish a purpose |
| Antonyms: | effective |
| Main Entry: | null and void |
| Part of Speech: | adjective |
| Definition: | invalid |
| Synonyms: | null, void, annulled, cancelled out, no longer law, nullified, of no effect |
| Main Entry: | invalid |
| Part of Speech: | adjective |
| Definition: | worthless; unfounded |
| Synonyms: | bad, baseless, fallacious, false, illogical, inoperative, irrational, mad, nugatory, null, null and void*, unreasonable, unscientific, unsound, untrue, void, wrong, ill-founded, not binding, not working, reasonless, sophistic, unreasoned |
| Antonyms: | sound, valid, worthwhile, worthy |
* = informal/non-formal usage
| Main Entry: | void |
| Part of Speech: | adjective |
| Definition: | nullified, meaningless |
| Synonyms: | bad, dead, fruitless, ineffective, ineffectual, inoperative, invalid, nugatory, null, null and void, sterile, unfruitful, unsuccessful, useless, vain, worthless, avoided, forceless, negated, not viable, set aside, unconfirmed, unenforceable, unratified, unsanctioned, voided |
| Antonyms: | full, meaningful, valid |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
Copyright © 2009 by the Philip Lief Group.
Cite This Source
| Main Entry: | nonentity |
| Part of Speech: | noun |
Related
Adjectives: |
absent, airy, annihilated, azoic, baseless, blank, defunct, departed, diriment, dreamy, empty, ethereal, eviscerated, exhausted, extinct, fabulous, gone, groundless, having no foundation, hollow, ideal, imperscriptable, inane, inanimate, inorganic, leaving no trace, lost, mineral, missing, negative, nominal, not any, not one, null, nullibiquitous, obliterated, omitted, perished, potential, shadowy, supposititious, toom, unbegotten, unborn, unconceived, uncreated, ungrounded, unmade, unproduced, unreal, unsubstantial, vacant, vacuous, vain, virtual, visionary, without foundation
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