INDIGNANT

adj. provoked, exasperated, disgruntled, piqued, irked, irritated, annoyed, vexed, angry, furious, irate, angered, enraged, incensed, wrathful, in high dudgeon, in a temper, in a rage, in a pet, Literary wroth, Colloq peeved, riled, in a huff, huffy, miffed, mad, livid, sore, US teed off, Slang pissed off Peter was quite indignant to learn that the publisher had lost his manuscript