1) Bitingly 2) Bitterly 3) Grimly 4) Sharply 1) Dryly 2) Grimly 3) Harshly 4) In a crabby manner 5) In a peevish way 6) In a sour manner 7) Severely 8) Sternly 9) With a bad temper 10) With ill humor 
• (adv.) In a sour manner; with sourness.
Sour'ly adverb In a sour manner; with sourness. 
[adv] - in a sour manner
adverb in a sour manner; `he complained sourly that the new rules only benefitted the managers`