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Merriam-Webster Online Thesaurus
important (adjective)
1.
having great meaning or lasting effect
SYNONIMS:
big, consequential, earthshaking, earth-shattering, eventful, historic, major, material, meaningful, momentous, monumental, much, significant, substantial, tectonic, weighty
RELATED WORDS:
decisive, fatal, fateful, strategic; earnest, grave, heavy, serious, sincere; distinctive, exceptional, impressive, outstanding, prominent, remarkable; valuable, worthwhile, worthy; distinguished, eminent, great, illustrious, noble, notable, noteworthy, outstanding, preeminent, prestigious; famous, notorious, renowned; all-important, central, critical, crucial, essential, key, pivotal, seminal, vital
NEAR ANTONYMS:
paltry, petty, worthless; anonymous, nameless, obscure, uncelebrated, unknown
inconsequential, inconsiderable, insignificant, little, minor, negligible, slight, small, trifling, trivial, unimportant
important (adjective)
2.
having great power or influence
SYNONIMS:
heavy, heavy-duty, influential, mighty, potent, powerful, puissant, significant, strong
RELATED WORDS:
high-level, senior, top; able, capable, competent, effective, efficient; authoritarian, autocratic ( autocratical), despotic, dictatorial, magisterial, tyrannical ( tyrannic); celebrated, distinguished, dominant, eminent, famed, famous, great, illustrious, noble, notable, noteworthy, notorious, outstanding, preeminent, prestigious, prominent, renowned; dynamic, energetic, forceful, high-powered, robust, vigorous
NEAR ANTONYMS:
feeble, flimsy, frail, infirm; anonymous, nameless, obscure, uncelebrated, unknown; incapable, incompetent, ineffective, inept, inexpert, unfit, unqualified, unskilled, unskillful
helpless, impotent, insignificant, little, powerless, unimportant, weak
important (adjective)
3.
having a feeling of superiority that shows itself in an overbearing attitude
SYNONIMS:
assumptive, bumptious, cavalier, chesty, haughty, highfalutin ( hifalutin), high-and-mighty, high-handed, high-hat, huffish, huffy, imperious, important, lofty, lordly, masterful, overweening, peremptory, pompous, presuming, presumptuous, pretentious, self-asserting, self-assertive, sniffy, stiff-necked, supercilious, superior, toplofty ( toploftical), uppish, uppity
RELATED WORDS:
authoritarian, bossy, dominant, dominating, domineering, magisterial, pontifical, pontificating; condescending, disdainful, patronizing; impertinent, impudent, saucy; snobbish, snobby, snooty; blusterous, blustery, boastful, bombastic, braggart, bragging, braggy, cocky, swaggering, vain, vainglorious; complacent, conceited, egocentric, egoistic ( egoistical), egotistic ( egotistical), hubristic, narcissistic, orgulous, prideful, proud, self-affected, self-applauding, self-centered, self-complacent, self-conceited, self-pleased, self-satisfied, smug, stuck-up; self-flattering, self-loving, self-promoting; brash, forward, uninhibited, unreserved; extroverted ( extraverted), immodest
NEAR ANTONYMS:
bashful, cowering, cringing, demure, diffident, introverted, mousy ( mousey), overmodest, self-critical, self-doubting, sheepish, shrinking, shy, subdued, timid; acquiescent, compliant, deferential, meek, passive, submissive, unaggressive, unassertive, unassuming, unobtrusive, yielding; quiet, reserved, retiring
humble, lowly, modest, unarrogant, unpretentious
important (adjective)
4.
having too high an opinion of oneself
SYNONIMS:
assured, biggety ( biggity), bigheaded, complacent, consequential, egoistic ( egoistical), egotistic ( egotistical), important, overweening, pompous, prideful, proud, self-conceited, self-important, self-opinionated, self-satisfied, smug, stuck-up, swellheaded, vain, vainglorious
RELATED WORDS:
blusterous, blustery, boastful, bombastic, braggart, bragging, braggy, cocky, swaggering; arrogant, assumptive, bumptious, cavalier, chesty, disdainful, fastuous, haughty, high-and-mighty, high-hat, huffy, lofty, lordly, masterful, peremptory, pontifical, self-asserting, self-assertive, snobbish, snobby, snooty, supercilious, superior, toplofty ( toploftical), uppish, uppity; domineering, high-handed, imperious; highfalutin ( hifalutin), holier-than-thou, pretentious; overconfident, presuming, presumptuous; confident, self-assured, self-confident; self-adulatory, self-congratulatory, self-contented, self-gratulatory; self-applauding, self-dramatizing, self-glorifying, self-promoting; self-affected, self-centered, self-engrossed, selfish; condescending, patronizing
NEAR ANTONYMS:
diffident, self-critical, self-distrustful, self-doubting, self-reproachful, self-reproving; meek, timid, unassertive; down-to-earth, unarrogant, unassuming, unpretentious; bashful, demure, introverted, mousy ( mousey), overmodest, retiring, sheepish, shrinking, shy
egoless, humble, modest, uncomplacent
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