effective

Fetched 2026-10-26 (cache).

Synonyms: affective, reflective, defective, ineffective, effecting, perfective, effectible, ejective, effectivate, elective, infective

Antonyms: affective, reflective, defective, ineffective, effecting, perfective, effectible, ejective, effectivate, elective, infective

Related words from Datamuse; suggestions, not definitions.

Adjective

1. Having the power to produce a required [[effect]] or effects.
2. Producing a decided or decisive effect.
3. Efficient, serviceable, or [[operative]], available for useful work.
4. Actually in effect.
5. {{lb|en|geometry|of a [[cycle]] or [[divisor]]}} Having no [[negative]] [[coefficient]]s.
6. {{lb|en|algebra|of a [[group action]]}} Such that no group [[element]] acts [[trivially]].
7. {{lb|en|physics|for any [[effective theory]]}} [[approximate]]; Not describing the fundamental dynamic changes in some system as they happen.

Noun

1. {{lb|en|military}} a [[soldier]] [[fit]] for [[duty]]

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.