tes·ty 
/ˈtɛsti/ adjective
tes·ti·er; tes·ti·est /ˈtɛsti/ adjective : becoming angry or annoyed easily
▪ She grew a little testy [=irritable, (chiefly Brit) tetchy] as the afternoon wore on.
▪ She grew a little testy [=irritable, (chiefly Brit) tetchy] as the afternoon wore on.
— tes·ti·ly /ˈtɛstəli/ adverb
▪ He replied testily that, no, he did not want any help.
/ˈtɛstəli/ adverb ▪ He replied testily that, no, he did not want any help.
— tes·ti·ness /ˈtɛstinəs/ noun [noncount]
/ˈtɛstinəs/ noun [noncount]
