Definitions

inefficacious

[in-ef-i-key-shuhs] / ˌɪn ɛf ɪˈkeɪ ʃəs /

ADJECTIVE

ineffectual

Synonyms

WEAK

abortive anticlimactic barren bootless defeasible feckless feeble forceless fruitless futile idle impotent inadequate incompetent indecisive ineffective inefficient inept inferior innocuous inoperative invertebrate lame limited neutralized nugatory null null and void paltry powerless spineless unable unavailing unfruitful unproductive unprofitable unsuccessful useless vain void withered worthless

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Inefficacious they are not, unless they be too badly preached to obtain attention.

From Ralph the Heir by Trollope, Anthony

And now follows the Story of the Millionaire, the Inefficacious Increment, and the Babes Drawn from the Wood.

From Roads of Destiny by Henry, O.