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Synonyms

unmarked

American  
[uhn-mahrkt] / ʌnˈmɑrkt /

adjective

  1. not marked.

  2. Linguistics.

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

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

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

    4. occurring more typically than an alternative form.


unmarked British  
/ ʌnˈmɑːkt /

adjective

  1. not carrying a mark or marks

    an unmarked police car

  2. not noticed or observed

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of unmarked

late Middle English word dating back to 1400–50; un- 1, marked