cogent
[adjective]
Synonyms: convincing, compelling, effective, forceful, influential, potent, powerful, strong, weighty

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Contrasted words: ineffective, ineffectual, inefficacious, feeble, forceless, impotent, powerless, weak
Related Words: compelling, constraining, forceful, forcible, potent, powerful, puissant, inducing, persuasive, justified, well-founded, well-grounded, consequential, influential, momentous, weighty, meaningful, significant

[TahlilGaran] English Synonym Dictionary ▲

co‧gent /ˈkəʊdʒənt $ ˈkoʊ-/ adjective formal
[Date: 1600-1700; Language: Latin; Origin: present participle of cogere 'to drive together, collect', from co- ( ⇒ co-) + agere 'to drive']
if a statement is cogent, it seems reasonable and correct
cogent argument/reason/case etc
a cogent argument for banning the drug
—cogently adverb
—cogency noun [uncountable]

[TahlilGaran] Dictionary of Contemporary English ▲