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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | strong |
| Synonyms: | able, able-bodied, active, athletic, big*, capable, durable, enduring, energetic, firm, fixed, forceful, forcible, hale, hard as nails, hardy, hearty*, heavy*, heavy-duty, in fine feather, mighty, muscular, potent, powerful, reinforced, robust, rugged, secure, sinewy, solid, sound, stable, stalwart, stark, staunch, steady, stout, strapping, sturdy, substantial, tenacious, tough*, unyielding, vigorous, well-built, well-founded, well-made |
* = informal/non-formal usage
| Main Entry: | cogent |
| Part of Speech: | adjective |
| Definition: | effective |
| Synonyms: | apposite, apt, compelling, conclusive, consequential, convictive, convincing, fitting, forceful, forcible, inducing, influential, irresistible, justified, meaningful, momentous, persuasive, pertinent, potent, powerful, puissant, relevant, satisfactory, satisfying, significant, solid, sound, strong, suasive, telling, urgent, valid, weighty, well-grounded |
| Antonyms: | impotent, ineffective, invalid, weak |
| Main Entry: | efficacious |
| Part of Speech: | adjective |
| Definition: | efficient, productive |
| Synonyms: | active, adequate, capable, competent, effective, effectual, energetic, influential, operative, potent, powerful, puissant, serviceable, strong, successful, useful, virtuous |
| Notes: | effective means 'having a (desired) result or effect,' effectual is 'succeeding in producing a desired result or effect,' and efficacious means the same as effectual as well as 'serving as an effective solution or remedy' if something is efficacious, it is able to produce the desired result; efficacy means the power to produce effects |
| Antonyms: | incapable, inefficacious, inefficient, unproductive, unsuccessful, useless |
| Main Entry: | forceful |
| Part of Speech: | adjective |
| Definition: | effective, powerful |
| Synonyms: | ball of fire, bullish, cogent, coming on strong, commanding, compelling, constraining, convincing, dominant, dynamic, electric, elemental, energetic, forcible, gutsy, mighty, persuasive, pithy, potent, powerhouse, puissant, punch, punchy, steamroller, stringent, strong, take-charge, take-over, telling, titanic, vehement, vigorous, violent, virile, weighty |
| Antonyms: | feeble, impotent, ineffective, meek, unforceful, weak |
| Main Entry: | forcible |
| Part of Speech: | adjective |
| Definition: | powerful, aggressive |
| Synonyms: | active, armed, assertive, coercive, cogent, compelling, compulsory, drastic, effective, efficient, energetic, forceful, impressive, intense, mighty, militant, persuasive, potent, puissant, strong, telling, valid, vehement, vigorous, violent, weighty |
| Antonyms: | nonaggressive, weak |
| Main Entry: | formidable |
| Part of Speech: | adjective |
| Definition: | difficult, overwhelming |
| Synonyms: | all-powerful, arduous, awesome, ballbuster, challenging, colossal, dismaying, effortful, great, hard, impressive, indomitable, intimidating, labored, laborious, mammoth, mighty, murder*, onerous, overpowering, powerful, puissant, rough go, rough*, staggering, strenuous, tall order, toilsome, tough proposition, tough*, tremendous, uphill |
| Antonyms: | easy, not hard, pleasant, trivial |
* = informal/non-formal usage
| Main Entry: | great |
| Part of Speech: | adjective |
| Definition: | important, celebrated |
| Synonyms: | august, capital, chief, commanding, dignified, distinguished, eminent, exalted, excellent, famed, famous, fine, glorious, grand, heroic, high-minded, highly regarded, honorable, idealistic, illustrious, impressive, leading, lofty, magnanimous, main, major, noble, notable, noted, noteworthy, outstanding, paramount, primary, principal, prominent, puissant, regal, remarkable, renowned, royal, stately, sublime, superior, superlative, talented |
| Antonyms: | infamous, insignificant, powerless, uncelebrated, undignified, unimportant, unknown, weak |
| Main Entry: | mighty |
| Part of Speech: | adjective |
| Definition: | forceful, powerful |
| Synonyms: | boss*, doughty, hardy, indomitable, lusty, muscular, omnipotent, potent, powerhouse, puissant, robust, stalwart, steamroller, stout, strapping, strengthy, strong, strong as ox, sturdy, vigorous, wieldy |
| Antonyms: | delicate, powerless, weak |
* = informal/non-formal usage
| Main Entry: | potent |
| Part of Speech: | adjective |
| Definition: | effective, powerful, forceful |
| Synonyms: | almighty, authoritative, ball of fire, cogent, commanding, compelling, convincing, dominant, dynamic, efficacious, forcible, full-bodied, go-getter, great, gutsy, impressive, influential, lusty, mighty, persuasive, powerhouse, puissant, punchy, robust, spanking, stiff, strong, sturdy, telling, trenchant, useful, vigorous |
| Antonyms: | disabled, fragile, helpless, impotent, incapable, ineffective, weak |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2012 by the Philip Lief Group.
Cite This Source
Copyright © 2012 by the Philip Lief Group.
Cite This Source
Dictionary.com, LLC. Copyright © 2012. All rights reserved.
