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Webster 1828 Edition

Adj.

Slightly offended.

miffed ‎(comparative more miffed, superlative most miffed)

(informal) Irritated, angry, put out or annoyed.
- 2003, Jim Brewington, Let There Be Light Please!, ISBN 0741414244, page 130:
  I was miffed at Rick for his behavior. I was miffed at the coach, not for his naivete of deafness, but for his arrogance, which converted his ignorance to stupidity.

Irritated

miffed