not marked.

Linguistics .

characterized by the absence of a distinctive phonological feature, as (p), which, in contrast to (b), lacks the distinctive feature of voicing.

characterized by the absence of a grammatical marker, as the singular in English in contrast to the plural, which is typically marked by an -s ending.

neutral with regard to an element of meaning specified by a semantically related item.

occurring more typically than an alternative form. Compare marked ( def. 4 ) .

adjective

flawless , unblemished