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Antonyms
Less efficient

Meaning Synonyms Antonyms Rhymes Sentences Translate Word Type Pronunciation Word Forms

Less efficient

Antonyms for "less efficient" (2 found)

Adjective(1 words)

Noun(1 words)

vehicle efficiency

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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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