Of a person: not musically gifted; not appreciative of music. Also as n. (with the and plural agreement): unmusical people as a class.

Unable or unwilling to hear, deaf; (also) having no ear for music (cf. ear, n.1 6). Also as n. with the: deaf or tone-deaf people as a class.

Out of tune, wrongly tuned; (of a person) †having no ear for music (obsolete).

In restricted sense: Insensible to certain kinds of sounds, musical rhythm, etc.

Scottish dialect. Unmusical; having no musical ear; dull, ‘wooden’; unimpressionable.

Not appreciative of music.

deaf to the tones of music; also transferred and figurative, insensitive, lacking in perception.

Lacking musicality or melodiousness; having no musical talent or sensitivity. Cf. amusia, n.