1) Annoyed 2) Ate at 3) Bugged 4) Displeased 5) Irked 6) Irritated 7) Miffed 8) Not entirely happy 9) Not too happy 10) Peeved 11) Pissed 12) Pissed off 13) Quite put out 14) Riled 15) Roiled 16) Steamed 17) Stunng 18) Vexed Found on https://www.crosswordclues.com/clue/nettled