Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb err

2 senses of err

Sense 1
err, mistake, slip -- (to make a mistake or be incorrect)

Sense 2
stray, err, drift -- (wander from a direct course or at random; "The child strayed from the path and her parents lost sight of her"; "don't drift from the set course")
       => travel, go, move, locomote -- (change location; move, travel, or proceed, also metaphorically; "How fast does your new car go?"; "We travelled from Rome to Naples by bus"; "The policemen went from door to door looking for the suspect"; "The soldiers moved towards the city in an attempt to take it before night fell"; "news travelled fast")

Antonyms of adj erring

1 sense of erring

Sense 1
erring, error-prone -- (capable of making an error; "all men are error-prone")

INDIRECT (VIA fallible) -> infallible -- (incapable of failure or error; "an infallible antidote"; "an infallible memory"; "the Catholic Church considers the Pope infallible"; "no doctor is infallible")

Similarity of adj erring

1 sense of erring

Sense 1
erring, error-prone -- (capable of making an error; "all men are error-prone")
       => fallible (vs. infallible) -- (likely to fail or make errors; "everyone is fallible to some degree")