gruff (adj.)

• abrupt
• acerb
• acid
• acrimonious
• aggressive
• bad-tempered
• bearish
• beastly
• biting
• bluff
• blunt
• boorish
• brash
• brassy
• brazen
• brusque
• cantankerous
• caustic
• cavalier
• choked
• churlish
• coarse
• crabbed
• crabby
• cracked
• croaky
• cross
• crotchety
• crusty
• curt
• cutting
• deep
• dour
• dry
• fierce
• grouchy
• grumbling
• grumpy
• guttural
• harsh
• hoarse
• husky
• ill-humored
• ill-natured
• irascible
• irritable
• low
• metallic
• morose
• peevish
• petulant
• querulous
• ragged
• rasping
• raucous
• rough
• roupy
• rude
• saturnine
• severe
• sharp
• short
• short-tempered
• sour
• squawky
• stertorous
• stinging
• strangled
• sulky
• sullen
• surly
• testy
• thick
• throaty
• tinny
• truculent
• uncivil