inefficace

French

Etymology

Learned borrowing from Latin inefficāx. By surface analysis, in- +‎ efficace.

Pronunciation

• IPA^(key): /i.ne.fi.kas/

Adjective

inefficace (plural inefficaces)

1. ineffectual, ineffective, inefficacious

   Antonym: efficace

Derived terms

• inefficacité

See also

• improductif

Further reading

• “inefficace”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012

Italian

Etymology

From Latin inefficāx.

Pronunciation

• IPA^(key): /i.nef.fiˈka.t͡ʃe/
• Rhymes: -atʃe
• Hyphenation: i‧nef‧fi‧cà‧ce

Adjective

inefficace m or f by sense (plural inefficaci)

1. ineffectual, ineffective, inefficacious

   Antonym: efficace

Derived terms

• inefficacemente

Related terms

• inefficacia

Further reading

• “inefficace”, in Vocabolario Treccani on line (in Italian), Istituto dell'Enciclopedia Italiana, 2026