cantankerously
(ad.)不懷好意地
Can·tan·ker·ous a. Perverse; contentious; ugly; malicious. [Colloq.] -- Can*tan*ker*ous*ly, adv. -- Can*tan*ker*ous*ness, n.
The cantankerous old maiden aunt. --Thackeray.
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cantankerously
adv : in a bad mood; "he answered her cantankerously"