countereffective.
Having the opposite effect.
Meaning & usage
Having the opposite effect.
Where this word comes from
Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Proto-Indo-European *-teros Proto-Italic *-teros Proto-Italic *komterosder. Proto-Italic *komterād Latin contrāder. Old French contre- Anglo-Norman countre-bor. Middle English counter- English counter- Proto-Indo-European *h₁éǵʰ Proto-Indo-European *-s Proto-Indo-European *h₁éǵʰs Proto-Italic *eks Latin ex Latin ex- Proto-Indo-European *dʰeh₁- Proto-Indo-European *dʰeh₁k- Proto-Indo-European *-yéti Proto-Indo-European *dʰh₁kyéti Proto-Italic *θakjō Proto-Italic *fakjō Latin faciō Latin efficiō Proto-Indo-European *-wós Proto-Indo-European *-iHwósder. Latin -īvus Latin effectīvusbor. French effectifder. English effective English countereffective From counter- + effective.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.