unlike, a. [dissimilar], [different], [diverse], [sundry], variant, heterogeneous, [unique], [nondescript].
unlikelihood, n. improbability, unlikeliness.
unlikely, a. improbable; [unpromising].
unlikeness, n. dissimilarity, dissimilitude, [difference], [contrast].
unlimited, a. limitless, illimitable, infinite, [absolute], [unbounded].
unload, v. disburden, unlade, [relieve].
unlooked-for, a. [unexpected], unanticipated, unforeseen, [chance].
unlovely, a. uncomely, [homely], [plain], unattractive, [repulsive].
unlucky, a. [unfortunate], [luckless], ill-starred, [unhappy], untoward.
unmaidenly, a. hoidenish, [rude], [boisterous], [pert].