MIFFED Meaning of MIFFED in English /mift/ , adj.put into an irritable mood, esp. by an offending incident: I was miffed when they didn't invite me to the party.[ 1815-25; MIFF + -ED 2 ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012