Dictionary and Thesaurus

Definition of Inefficient

• (a.) Not efficient; not producing the effect intended or desired; inefficacious; as, inefficient means or measures.
• (a.) Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing; as, inefficient workmen; an inefficient administrator.

Synonyms of Inefficient

• Ineffective

Antonyms of Inefficient

• Efficient

Homophones of Inefficient