adj. Function: adjective
1 incapable of being in error FF1C; an infallible ear for pitch in music FF1E;
Synonyms: inerrable, inerrant, sure, unerring
Related Words: faultless, flawless, impeccable, undeceivable; correct, exact, perfect
Contrasted Words: deceivable, faulty, unsure; doubtful, dubious, questionable
Antonyms: fallible
2 not liable to mislead, deceive, or disappoint FF1C; an infallible remedy FF1E;
Synonyms: certain, sure, surefire, unfailing
Related Words: effective, efficacious, efficient; handy, helpful, useful; acceptable, agreeable, satisfying; satisfactory
Contrasted Words: doubtful, questionable, uncertain, unsure; useless, worthless; unacceptable, unsatisfying; unsatisfactory
Antonyms: fallible