One can cure oneself of the "not un-" formation by memorizing this sentence: "A not unblack dog was chasing a not unsmall rabbit across a not ungreen field."
Source: tatoeba (3469584)
Ungreen
Synonyms for "ungreen"
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Antonyms
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1 entriesrelated to
4 entriesSample sentences
34 total sentences available.
The ungreen emerald ring went round and round, and the ungreen emerald earrings swung: Thelma was working at the rim of her glass, too.
Source: wiktionary
The ungreen virescent exhibits a low rate of true photosynthesis (on both a leaf fresh weight and chlorophyll basis) compared to wild-type.
Source: wiktionary
Adam is also a member of the class of ungreen things, and by virtue of being ungreen can be an icon for ungreen things. But a poet who wanted to talk about ungreenness would have to take special pains to get us to notice that Adam was ungreen.
Source: wiktionary
Showing 4 of 34 available sentences.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.