plausible Synonyms

believable viable convincing likely justifiable credible sensible tenable defensible specious possible feasible rational reasonable probable persuasive seeming strong reasoned sound smooth sophistical sophistic intelligent solid reliable respectable smooth-tongued slick substantial suitable colourable commonsensical odds on probabilistically thought out truthlike well-founded well-grounded workable supported supportable supposable tartuffish thinkable valid veniable verisimilar vindicable realistic