adj. 25B6; adjective CONVINCING, compelling, strong, forceful, powerful, potent, weighty, effective; valid, sound, plausible, telling; impressive, persuasive, eloquent, credible, influential; conclusive, authoritative; logical, reasoned, rational, reasonable, lucid, coherent, clear.
COGENT
Meaning of COGENT in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012