masked
From Longman Dictionary of Contemporary Englishmaskedmasked /mɑːskt $ mæskt/ adjective HIDE/MAKE IT HARD TO FIND OR SEEwearing a mask Masked gunmen opened fire on the bus.Examples from the Corpusmasked• Ideas had been ruthlessly stolen from the Nice masked ball at Mardi Gras.• The city seems like it is preparing for a masked ball.• Guildford returned leading a large company of masked figures who marched into the hall to the raucous clamour of tambour and fife.• It is said that the masked lady died there in childbirth.