ill-behaved

adjective

badly behaved; exhibiting bad behaviour.

“That boy is ill-behaved: he is always naughty.”

Similar
horrible
Opposite
well-behaved
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Meanings

adjectiveill-behaved (comparative more ill-behaved, superlative most ill-behaved)

comparative more ill-behaved · superlative most ill-behaved · alternative ill behaved

  1. badly behaved; exhibiting bad behaviour.

    That boy is ill-behaved: he is always naughty.

    Synonyms: horrible · Antonyms: well-behaved

Synonyms & antonyms

adjectivebadly behaved; exhibiting bad behaviour.

Similar
horrible
Opposite
well-behaved

Origin

From ill + behaved.

Full word history & related roots →
Cite this entry
APA

ill-behaved. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/ill-behaved

MLA

“ill-behaved.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ill-behaved. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “ill-behaved,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/ill-behaved.

Source: ill-behaved on Wiktionary, CC BY-SA 4.0.