adjective
1.
Synonyms: erratic 1, devious, stray, wandering
Related Word: drifting, itinerant, meandering, rambling, ranging, roaming, roving, shifting, straying
Contrasted words: static, unmoving
2.
deviating from an accepted pattern or standard
a parent scolding her errant child
Synonyms: aberrant, devious, erring
Related Word: deviating, straying, wandering; misbehaving, mischievous, naughty
Idioms: off the straight and narrow
3.
Synonyms: fallible , errable
Related Word: aberrant, erring; unreliable
Contrasted words: perfect, trustworthy
Antonyms: inerrant