1 noun FOOD, BOTmustard masc1 c m umustard sauceanlann mustaird2 (also mustard yellow) noun COLmustard masc1 c m udath an mhustaird3 (also mustard yellow) adjective COLmustaird gs as adj c m uar dhath an mhustairda mustard jacketseaicéad ar dhath an mhustaird