insubordination, n. 1. defiance, defiantness, rebelliousness, mutinousness, insurrectionalism, revolutionariness, seditiousness, insurgence, riotousness.
2. rebellion, insurrection, mutiny, revolt, uprising, revolution, sedition, insurgency; riot, disorder, disturbance, disruption, outbreak; strike, picketing, protest, protest march, demonstration, sit-in; (all of laws) violation, breach, break or breaking, infraction, infringement, transgression.
3. disobedience, refractoriness, recalcitrance, contumaciousness, contumacity, contumacy; undutifulness, noncompliance, noncooperation, uncooperativeness, nonconformity; cross-grainedness, perverseness, contrariness, frowardness, opposition, restiveness, dissension, recusancy, resistance; stubbornness, obstinateness, obstinancy, pig-headedness, mulishness, obdurateness, headstrongness, willfulness, waywardness; intractability, intractableness, unsubmissiveness, insubmission, indocility, disorderliness, unruliness, badness; incorrigibility, incorrigibleness, unmanageableness, ungovernableness, ungovernability.
insubstantial, adj. 1. unsubstantial, slight, flimsw, tenuous, thin, watery, watered-down; poor, weak, feeble, frail, fragile; delicate, dainty, light, fine, ethereal, gauzy, gossamer, cobwebby.
2. insignificant, unimportant, of little or no import, negligible, nugatory, inconsiderable, inconsequential; trivial, trifling, petty, niggling, minor, piddling, Inf. picayune; paltry, meager, mere, scant, small, puny, dinky.
3. unreal, illusory, illusive, false, delusive, hallucinatory, phantom, phantasmal, spectral, ghostly; intangible, impalpable, immaterial, incorporeal, spiritual; visionary, imaginary, imagined, chimerical, dreamy, fanciful; airy, vaporous, wild, idle, empty; fantastic, make-believe, made-up, fictitious.
insufferable, adj. intolerable, unbearable, unendurable, insupportable; impossible, more than flesh and blood can bear, not to be borne, past bearing, un-takeable; enough, too much, enough to drive one mad, enough to try the patience of Job, all that one can stand; painful, excruciating, agonizing, afflictive; dreadful, harrowing, grim, grievous, torturous.
insufficiency, n. 1. deficiency, inadequacy, inadequateness, insufficience, insufficientness; scarcity, dearth, exiguity, paucity, scantiness, scantness, meagerness, none to spare, stint, lack, want, short supply, need, wantage; falling short, shortcoming, shortage, deficit, short measure, short allowance; poverty, destitution, indigence, penuriousness, pennilessness, beggary, pauperism.
2. imperfection, defectiveness, incompletion, unsatisfaction; incompetence, incapability, inability, unqualification.
insufficient, adj. 1. deficient, inadequate, lacking, wanting, needful, in short supply, at a premium; meager, scant, scarce, scanty, exiguous, spare, lean; too little, too small, not enough, too little too late; in want of, short of, shy of, shy, short, minus, missing, catalectic; penurious, impoverished, impecunious, poverty-stricken, penniless, destitute, poor.
2. incomplete, imperfect, unsatisfactory; incompetent, unequal to, incapable, unqualified, unable; incommensurate, unequal, uneven, unbalanced; undermanned,