inefficacy

  • 1Inefficacy — In*ef fi*ca*cy, n. [L. inefficacia. See {In } not, and {Efficacy}.] Lack of power to produce the desired or proper effect; inefficiency; ineffectualness; futility; uselessness; fruitlessness; as, the inefficacy of medicines or means. [1913… …

    The Collaborative International Dictionary of English

  • 2inefficacy — I noun disability, disablement, failure, feebleness, forcelessness, helplessness, impotence, inability, inadequacy, incapability, incapacitation, incapacity, incompetence, incompetency, ineffectiveness, ineffectuality, ineffectualness,… …

    Law dictionary

  • 3inefficacy — (n.) want of force or virtue to produce the desired effect, 1610s, from L.L. inefficacia, from inefficacem (nom. inefficax), from in not, opposite of (see IN (Cf. in ) (1)) + efficax (see EFFICACY (Cf. efficacy)) …

    Etymology dictionary

  • 4inefficacy — [in ef′i kə sē] n. [LL inefficacia] lack of efficacy; inability to produce the desired effect …

    English World dictionary

  • 5inefficacy — noun Etymology: Late Latin inefficacia, from Latin inefficac , inefficax inefficacious, from in + efficac , efficax efficacious Date: circa 1615 lack of power to produce a desired effect …

    New Collegiate Dictionary

  • 6inefficacy — /in ef i keuh see/, n. lack of power or capacity to produce the desired effect. [1605 15; < LL inefficacia. See IN 3, EFFICACY] * * * …

    Universalium

  • 7inefficacy — noun The condition of being ineffective …

    Wiktionary

  • 8inefficacy — (Roget s Thesaurus II) noun The condition or state of being incapable of accomplishing or effecting anything: helplessness, impotence, inadequacy, incapability, ineffectiveness, ineffectuality, ineffectualness, powerlessness, uselessness. See&#8230; …

    English dictionary for students

  • 9inefficacy — in·ef·fi·ca·cy || ɪn efɪkÉ™sɪ n. inability to produce the desired results …

    English contemporary dictionary

  • 10inefficacy — n. Ineffectualness …

    New dictionary of synonyms