Ill-defined
"Ill-defined" in a Sentence (2 examples)
An ill-defined dislike, a little like jealousy, arose in Henrietta's mind; a little, however, mitigated by observing that the gentleman instantly caught sight of herself; and that, when not absolutely forced to look at his companion, he looked towards her.
Are you sick, or ill-defined? / Are you lost, or are you just difficult to come by?
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.