infallible Antonyms

fallible defective faulty error-prone imperfect invalid off omissible precarious not perfect inexact incorrect hazardous frail flawed questionable riskful undependable unconvincing imprecise iffy avertable weak untrue unsound unreliable uncertain unassured rocky risky faultful false capricious bogus biased bad assumed arguable anthropological answerable ambiguous affected adopted academical cod concocted contestable fallacious evitable erroneous