Adjective
The drug has some undesirable side effects.
This may have undesirable consequences.
Frankly, it's an undesirable and unpleasant job.
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Adjective
For modern high-performance structural uses, an exact replica of nacre might even be undesirable because those organic silk proteins would lose their structure at high temperatures.—Caitlin Kennedy, Scientific American, 25 Apr. 2026 All of these routes risk undesirable tax consequences or, perhaps worse, ire from heirs.—Hayley Cuccinello, CNBC, 2 Apr. 2026
Noun
And so our ward, New Hyde, becomes a sort of metaphor for all the ways in which society disappears its undesirables.—John Hopewell, Variety, 27 Apr. 2026 The undesirables who entered our country illegally, then committed some crime, were defended by protests against federal law enforcement.—Roger Van Zanen, The Orlando Sentinel, 17 Feb. 2026 See All Example Sentences for undesirable