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Antonyms
Least effective

Meaning Synonyms Antonyms Rhymes Sentences Translate Word Type Pronunciation Word Forms

Least effective

Antonyms for "least effective" (3 found)

Determiner(1 words)

most watering can

Noun(2 words)

greatest mayoralmost effective

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Source note: This entry is assembled from open lexical datasets and WordToolSet editorial checks. See our data sources and editorial policy. Last reviewed May 2026.

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