unmarked

:  not marked: such asa :  not having an identifying mark or distinctive notation “I want five thousand dollars in unmarked singles.” — Ed McBain … an unmarked storefront on Melrose Avenue. — Gerri Hirshey an unmarked grave an unmarked police carb of a road :  not having a marker giving a street name or route number … an unmarked, graveled road running parallel with the levee. — American Guide Series: Louisianac :  not noticed :  unobserved To let the death of such a man go unmarked would be, for one offense, to slight ourselves. — Stanley Kauffmand :  not characterized wrote political articles unmarked by a regard for truth The Christmas season passed, unmarked by any rejoicing. — Elizabeth George Speare