acting or arriving or performed exactly at the time appointed; "she expected guests to be punctual at meals"; "he is not a particularly punctual person"; "punctual payment"
a warrant authorizing law enforcement officials to search for objects or people involved in the commission of a crime and to produce them in court; the warrant describes the locations where the officials may search
incapable of failure or error; "an infallible antidote"; "an infallible memory"; "the Catholic Church considers the Pope infallible"; "no doctor is infallible"