unmarked

[ uhn-mahrkt ]
/ ʌnˈmɑrkt /

adjective

not marked.
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 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.Compare marked(def 4).

Origin of unmarked

late Middle English word dating back to 1400–50; see origin at un-1, marked
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unmarked

British Dictionary definitions for unmarked

unmarked

/ (ʌnˈmɑːkt) /

adjective

not carrying a mark or marksan unmarked police car
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