N. inexpedience, inexpediency, undesirableness, undesirability, discommodity, impropriety, unfitness, inutility, disadvantage

V. be inexpedient, come amiss, embarrass, put to inconvenience, pay too dear for one's whistle

Adj. inexpedient, undesirable, unadvisable, inadvisable, objectionable, inapt, ineligible, inadmissible, inconvenient, incommodious, discommodious, disadvantageous, inappropriate, unfit, ill-contrived, ill-advised, unsatisfactory, unprofitable &c, unsubservient, inopportune, out of place, in the wrong place, improper, unseemly, clumsy, awkward, cumbrous, cumbersome, lumbering, unwieldy, hulky, unmanageable, impedient, unnecessary

Phr. it will never do