1not marked or bearing identifying markings:an unmarked police carhis skin was unmarked
Linguistics (of a word or other linguistic unit) having a more general meaning or use than a corresponding marked term:‘duck’ is unmarked, whereas ‘drake’ is marked
2not noticed:it’s a pleasure to reward them for work which might otherwise go unmarked
3British (of a player in a team game) not marked by a player from the opposing team:Eyres was left unmarked and duly scored from eight yards