unbroken, a. [whole], intact; inviolate, inviolated; undisturbed, [sound], [profound]; [wild], untamed.
unburnable, a. incombustible, asbestic, incremable.
unbury, v. [exhume], disentomb, disinter.
unburying, n. [exhumation], disentombment, disinterment.
uncanny, a. weird, eerie.
uncanonical, a. apocryphal, [unauthentic].
unceasing, a. incessant, [perpetual], [perennial], [ceaseless].
unceremonious, a. [informal], [unconstrained]; [bluff], [blunt].
uncertain, a. [distrustful], hesitating; [dubious], [precarious], problematical, [insecure]; equivocal, [ambiguous], [indefinite], [irresolute], [inconstant], [fickle], [variable], [capricious]; [fallible].
uncertainty, n. [distrust], [hesitation], [doubt], dubiousness, dubiety, incertitude; [irresolution], variableness, [inconstancy], capriciousness; ambiguity, indefiniteness; contingency, fortuity; [fallibility]; [suspense].