Link Centre Dictionary

inefficacious

inef·fi·ca·cious

uncommon

adjective

1.

lacking the power to produce a desired effect

  • “laws that are inefficacious in stopping crime”
Antonyms

Origin

From in- + efficacious.

Related words

Word family

See also

WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.