inefficacious
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inefficacious
Rhymes with -eɪʃəs
Where it comes from
Etymology tree
Proto-Indo-European *né
Proto-Indo-European *n̥-
Proto-Italic *n̥-
Latin in-bor.
Middle English in-
English in-
English efficacious
English inefficacious
From in- + efficacious.
adjective more inefficacious · most inefficacious
- Incapable of having the intended consequence.
- Not effective.
Similar: ineffective
