Pertinent
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inadequate, unable, purposeless, inefficient, wrong, unsuitable, senseless, useless, meaningless, invalid, unfitting, extraneous, inconsequential, pointless, infelicitous, immaterial, incapable, unbecoming, ineffective, unjust, frivolous, inadmissible, unimportant, slight, unconnected, inopportune, trifling, untimely, inappropriate, incompetent, minor, malapropos, unsuited, disjoined, unrelated, unaffiliated, illegitimate, insignificant, incorrect, irrelevant, improper, weak, inapt, impotent, unseemly, inapplicable, little, inept, trivial, disconnected, negligible, uncombined, unfair.