unmatched, a. [unequaled], [matchless], [incomparable], nonpareil.
unmeaning, a. meaningless, [senseless]; [insignificant], inexpressive.
unmeant, a. [unintentional].
unmelodious, a. [discordant], [harsh], dissonant, inharmonious, [unmusical].
unmeltable, a. infusible.
unmerciful, a. [cruel], [pitiless], [merciless], inclement, [unsparing], [stern], [unrelenting], [ruthless], [brutal], incompassionate, [unkind]; (Colloq.) [excessive], [fabulous], [exorbitant], [immoderate].
unmindful, a. [oblivious], inadvertent, [inattentive], heedless.
unmistakable, a. [manifest], palpable, [obvious], [patent], [evident], distinct, unambiguous.
unmixable, a. immiscible.
unmixableness, n. immiscibility.