inefficace

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

• IPA^(key): /i.nɛ.fi.kas/ ~ /i.ne.fi.kas/

inefficace (plural inefficaces)

1. ineffectual, ineffective, inefficacious

   Antonym: efficace

• inefficacité

• improductif

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

From Latin inefficāx.

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

inefficace m or f (plural inefficaci)

1. ineffectual, ineffective, inefficacious

   Antonym: efficace

• inefficacemente

• inefficacia

• inefficace in Treccani.it – Vocabolario Treccani on line, Istituto dell'Enciclopedia Italiana