Thesaurus.com
Thesaurus / not effective
FEEDBACK

synonyms for not effective

  • feeble
  • fruitless
  • futile
  • impotent
  • inadequate
  • incompetent
  • indecisive
  • ineffectual
  • inefficient
  • inept
  • limited
  • null
  • powerless
  • unable
  • unproductive
  • unprofitable
  • unsuccessful
  • worthless
  • abortive
  • anticlimactic
  • barren
  • bootless
  • defeasible
  • emasculate
  • epicene
  • feckless
  • forceless
  • idle
  • inefficacious
  • inferior
  • innocuous
  • inoperative
  • lame
  • neutralized
  • no-go
  • nugatory
  • paltry
  • slack-spined
  • spineless
  • unavailable
  • unavailing
  • unfruitful
  • vain
  • void
  • withered

antonyms for not effective

MOST RELEVANT
  • able
  • adequate
  • capable
  • competent
  • dexterous
  • effective
  • effectual
  • efficient
  • expert
  • fit
  • fruitful
  • potent
  • powerful
  • productive
  • profitable
  • skillful
  • strong
  • successful
  • sufficient
  • useful
  • valuable
  • worthwhile
  • worthy
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
QUIZ
Can You Take The Heat? This Quiz On Words For "Summer" Will Tell
START THE QUIZ
SYNONYM OF THE DAY
OCTOBER 26, 1985
Choose the synonym for future
capacitor

WORDS RELATED TO NOT EFFECTIVE

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.