SAT implausible Definition Not seeming reasonable or probable. Example "His alibi was implausible given the timeline of events." Sign in to save SAT PDF — $25 ← implant implement → Study tips featuring "implausible" How Context Clues Save You on the SAT Related words SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal