- not effective; not producing the desired effect; ineffectual: an ineffective plan
- not capable of performing satisfactorily; incompetent; inefficient: an ineffective mayor
When you make an effort to clean up but you do not end up actually cleaning anything at all, this is an example of an effort that would be described as ineffective.
- Not producing an intended effect; ineffectual: an ineffective plea.
- Inadequate; incompetent: an ineffective teacher.
(comparative more ineffective, superlative most ineffective)
in- + effective
- This half measure was as ineffective as was to have been expected.
- Ismail's efforts to put an end to the slave trade, if sincere, were ineffective, and, moreover, south of Kordofan the authority of the government did not extend beyond the posts occupied by their troops.
- He helped the ineffective Celestine V.
- The plan of an international fleet to coerce the Mahommedan is even to this day ineffective; but the Hospitallers, who acquired a new basis by the conquest of Rhodes in 1310, used their fleet to enforce a partial and, on the whole, ineffective blockade of the coast of the Levant.
- But he was deficient, it would seem, in the qualities that make an attractive lecturer, being harsh and indistinct in voice, ineffective in the treatment of his subject, and "singularly wanting in the language and power of illustration."