'Pettishly' definitions:

Definition of 'pettishly'

(from WordNet)
adverb
In a petulant manner; "he said testily; `Go away!'" [syn: testily, irritably, petulantly, pettishly]

Definition of 'Pettishly'

From: GCIDE
  • Pettish \Pet"tish\, a. [From Pet.] Fretful; peevish; moody; capricious; inclined to ill temper. "A pettish kind of humor." --Sterne. -- {Pet"tish*ly}, adv. -- {Pet"tish*ness}, n. [1913 Webster]