ineffective, a. ineffectual, [unavailing], inefficacious.

inefficient, a. [ineffective], inefficacious; [slack], [remiss], [incompetent].

inelastic, a. inductile, inextensible, [rigid].

inelasticity, n. inductility, inextensibility, [rigidity].

ineligible, a. disqualified.

inequality, n. disparity, disproportion, unevenness, [irregularity]; [unfairness], [injustice]; inequation.

inexcusable, a. [unpardonable], indefensible, [unjustifiable], [unwarrantable].

inexhaustible, a. [exhaustless].

inexorable, a. [unyielding], [relentless], [implacable], [unmovable], [unrelenting].

inexperienced, a. untrained, unpractised, undisciplined, [raw], [unskilled].