| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | productive, persuasive |
| Synonyms: | able, active, adequate, capable, cogent, compelling, competent, convincing, direct, effectual, efficacious, efficient, emphatic, energetic, forceful, forcible, having lead in pencil, impressive, live, moving, on the ball, operative, playing hardball, potent, powerful, powerhouse, practical, producing, resultant, serviceable, serving, sound, striking, sufficient, telling, trenchant, useful, valid, virtuous, wicked*, yielding |
| 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' |
| Antonyms: | fruitless, impotent, incapable, ineffective, unproductive, useless, weak |
| Main Entry: | emphatic |
| Part of Speech: | adjective |
| Definition: | insistent, unequivocal |
| Synonyms: | absolute, accented, assertive, assured, categorical, certain, cogent, confident, decided, definite, definitive, determined, direct, distinct, dogmatic, dynamic, earnest, energetic, explicit, express, flat, for a face, forceful, forcible, important, impressive, marked, momentous, no mistake, pointed, positive, potent, powerful, pronounced, resounding, significant, sober, solemn, stressed, striking, strong, sure, telling, trenchant, unmistakable, vigorous |
| Antonyms: | equivocal, indefinite, indistinct, insignificant, reserved, understated, unpronounced |
| Main Entry: | enthusiastic |
| Part of Speech: | adjective |
| Definition: | interested, excited |
| Synonyms: | agog, animated, anxious, ardent, athirst, attracted, avid, bugged, concerned, crazy about, devoted, dying to, eager, earnest, ebullient, exhilarated, exuberant, fanatical, fascinated, fervent, fervid, forceful, gaga, gone on, gung ho, hearty, intent, keen, keyed up, lively, nutty, obsessed, passionate, pleased, rabid, red-hot, rhapsodic, spirited, tantalized, thrilled, titillated, unqualified, vehement, vigorous, wacky*, warm, wholehearted, willing, zealous |
| Antonyms: | apathetic, disinterested, doubting, indifferent, lethargic, pessimistic, unenthusiastic, unexcited, weary |
| Main Entry: | explosive |
| Part of Speech: | adjective |
| Definition: | volatile, dangerous |
| Synonyms: | at the boiling point, bursting, charged, consequential, convulsive, detonating, detonative, ebullient, eruptive, fiery, forceful, frenzied, fulminant, fulminating, hazardous, impetuous, meteoric, overwrought, perilous, raging, rampant, stormy, tense, touchy, ugly, uncontrollable, unstable, vehement, violent, wild |
| Antonyms: | calm, peaceful, safe |
| 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 |
| Notes: | forcible indicates the use of brute force, forced means done involuntarily, and forceful suggests a potential for force |
| Antonyms: | nonaggressive, weak |
| Main Entry: | hefty |
| Part of Speech: | adjective |
| Definition: | big, bulky |
| Synonyms: | ample, awkward, beefy, brawny, burly, colossal, cumbersome, extensive, fat, forceful, heavy, hulking, husky, large, large-scale, major, massive, muscular, ponderous, powerful, robust, sizable, strapping, strong, sturdy, substantial, thumping, tremendous, unwieldy, vigorous, weighty |
| Antonyms: | slight, small, thin, tiny |
| Main Entry: | Herculean |
| Part of Speech: | adjective |
| Definition: | powerful, strong |
| Synonyms: | almighty, backbreaking, colossal, courageous, forceful, gargantuan, gigantic, hard, heroic, huge, impressive, laborious, mighty, strenuous, tough, vigorous |
| Main Entry: | high-powered |
| Part of Speech: | adjective |
| Definition: | powerful |
| Synonyms: | authoritarian, authoritative, commanding, controlling, dominant, dynamic, effective, effectual, forceful, forcible, in control, in the saddle, influential, mighty, potent, robust, ruling, strong, supreme, weighty |
| Main Entry: | insistent |
| Part of Speech: | adjective |
| Definition: | demanding |
| Synonyms: | assertive, burning, clamant, clamorous, continuous, crying, dire, dogged, emphatic, exigent, forceful, imperative, imperious, importunate, incessant, obstinate, peremptory, perseverant, persevering, persistent, pressing, reiterative, resolute, resounding, unrelenting, urgent |
| Antonyms: | disinterested, indifferent, lenient, tolerant |