Synonyms of effective in English:

effective


See definition of effective

adjective

1‘there is no effective treatment for this condition’

SYNONYMS

successful, effectual, efficacious, productive, constructive, fruitful, functional, potent, powerful

worthwhile, helpful, of help, of assistance, beneficial, advantageous, valuable, useful, of use

ANTONYMS

ineffective, incompetent, weak

2‘a more effective argument can be constructed in support of the opposite point of view’

SYNONYMS

convincing, compelling, strong, forceful, forcible, powerful, potent, weighty, plausible, efficacious, sound, valid, well founded, telling

impressive, persuasive, irresistible, credible, influential, conclusive, unanswerable, authoritative

logical, reasoned, reasonable, well reasoned, rational, lucid, coherent, cogent, eloquent, clear, articulate

ANTONYMS

weak

3‘the new law will become effective three months from now’

SYNONYMS

operative, in force, in effect, in operation, valid, official, signed and sealed

lawful, legal, licit, legitimate, legally binding, binding

effectual

ANTONYMS

invalid

4‘the region did not come under effective Dutch control until 1904’

SYNONYMS

virtual, practical, essential, operative, actual, implied, implicit, unacknowledged, tacit

ANTONYMS

theoretical


Phrases

    be effective

      ‘no one doubts that these measures will be effective’

      SYNONYMS

      succeed, be successful, work, work out, turn out well, go as planned, have the desired result, get results, be efficacious

      have an effect, take effect, be efficacious, function, act, have results, take hold

      informal

      come off, pay off, do the trick, do the business

      North American informal

      turn the trick

      ANTONYMS

      fail, have no effect