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| Main Entry: | |
| Part of Speech: | noun |
| Definition: | need |
| Synonyms: | condition, essential, must, necessity, precondition, requirement |
| Antonyms: | nonessential |
| Main Entry: | requirement/requisite |
| Part of Speech: | noun |
| Definition: | necessity, want |
| Synonyms: | claim, compulsion, concern, condition, demand, desideratum, element, engrossment, essential, exaction, exigency, extremity, fulfillment, fundamental, imperative, lack, must, need, obligation, obsession, pinch, precondition, preliminary, preoccupation, prepossession, prerequisite, prescription, provision, proviso, qualification, sine qua non, specification, stipulation, terms, urgency, vital part |
| Antonyms: | desire, option, wish |
| Main Entry: | adequate |
| Part of Speech: | adjective |
| Definition: | enough, able |
| Synonyms: | acceptable, all right, capable, comfortable, commensurate, competent, decent, equal, fair, passable, requisite, satisfactory, sufficient, sufficing, suitable, tolerable, unexceptional, unobjectionable |
| Notes: | adequate tends toward the qualitative and sufficient toward the quantitative, so adequate is 'suitable to something' and sufficient is 'enough for something' |
| Antonyms: | inadequate, inferior, insufficient, unequal, unfit, unqualified, unsuitable, useless |
| Main Entry: | binding |
| Part of Speech: | adjective |
| Definition: | necessary |
| Synonyms: | bounden, compulsory, conclusive, counted upon, essential, imperative, incumbent on, indissoluble, irrevocable, mandatory, obligatory, required, requisite, unalterable |
| Main Entry: | compulsory |
| Part of Speech: | adjective |
| Definition: | binding |
| Synonyms: | compulsatory, de rigueur, forced, imperative, imperious, mandatory, necessary, obligatory, required, requisite |
| Antonyms: | free, liberalized, liberated, optional, unstipulated, voluntary |
| Main Entry: | condition |
| Part of Speech: | noun |
| Definition: | requirement, limitation |
| Synonyms: | arrangement, article, catch, codicil, contingency, demand, essential, exception, exemption, fine print, kicker, modification, must, necessity, postulate, precondition, prerequisite, provision, proviso, qualification, requisite, reservation, rule, sine qua non, small print, stipulation, strings, terms |
| Main Entry: | due |
| Part of Speech: | adjective |
| Definition: | appropriate, proper |
| Synonyms: | becoming, coming, condign, deserved, earned, equitable, fair, fit, fitting, good, just, justified, merited, obligatory, requisite, rhadamanthine, right, rightful, suitable |
| Antonyms: | improper, inappropriate, insufficient, unjustified, unmerited, unrightful, unsuitable |
| Main Entry: | essential |
| Part of Speech: | adjective |
| Definition: | important, vital |
| Synonyms: | capital, cardinal, chief, constitutive, crucial, foremost, fundamental, imperative, indispensable, leading, main, necessary, necessitous, needed, needful, prerequisite, principal, required, requisite, right-hand, wanted |
| Notes: | the words crucial, essential, and vital cannot be qualified (cannot be more or less...) |
| Antonyms: | accessory, auxiliary, inessential, minor, nonessential, secondary, subsidiary, unimportant |
| Main Entry: | essential |
| Part of Speech: | noun |
| Definition: | necessity, basic |
| Synonyms: | ABCs, bottom line, brass tacks, condition, element, essence, fire and ice, fundamental, groceries, guts*, heart, meat and potatoes, must, name of the game, nitty-gritty, nuts and bolts, part and parcel, precondition, prerequisite, principle, quintessence, requirement, requisite, rudiment, sine qua non, stuff, substance, vital part, where one's at |
| Notes: | the words crucial, essential, and vital cannot be qualified (cannot be more or less...) |
| Antonyms: | accessory, auxiliary, nonessential, subsidiary, throwaway, trivia |
* = informal/non-formal usage
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
