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Synonyms for viperous
adj malicious, venomoushostile
adjective. antagonistic, mean
- adverse
- alien
- allergic
- anti
- argumentative
- bellicose
- belligerent
- bitter
- catty
- chill
- cold
- competitive
- contentious
- contrary
- disapproving
- dour
- hateful
- ill-disposed
- inhospitable
- inimical
- malevolent
- malicious
- malignant
- militant
- nasty
- opposed
- opposite
- oppugnant
- ornery
- pugnacious
- rancorous
- scrappy
- sour
- spiteful
- surly
- unfavorable
- unfriendly
- unkind
- unpropitious
- unsociable
- unsympathetic
- unwelcoming
- viperous
- virulent
- vitriolic
- warlike
jeopardous
adjective. dangerous
- adventurous
- alarming
- bad
- breakneck
- chancy
- critical
- dangersome
- deadly
- delicate
- dynamite
- exposed
- fatal
- formidable
- hairy
- hazardous
- heavy
- hot
- impending
- impregnable
- insecure
- loaded
- malignant
- menacing
- mortal
- nasty
- on collision course
- parlous
- perilous
- portentous
- precarious
- pressing
- queasy
- risky
- serious
- serpentine
- shaky
- speculative
- terrible
- thorny
- threatening
- ticklish
- touch-and-go
- touchy
- treacherous
- ugly
- unhealthy
- unsafe
- unstable
- urgent
- venturesome
- venturous
- viperous
- vulnerable
- wicked
mephitical
adjective. poisonous
more dangerous
adjective. hazardous, troubling
- alarming
- bad
- breakneck
- chancy
- critical
- dangersome
- deadly
- delicate
- dynamite
- exposed
- fatal
- formidable
- hairy
- heavy
- hot
- impending
- impregnable
- insecure
- jeopardous
- loaded
- malignant
- menacing
- mortal
- nasty
- on collision course
- parlous
- perilous
- portentous
- precarious
- pressing
- queasy
- risky
- serious
- serpentine
- shaky
- speculative
- terrible
- thorny
- threatening
- ticklish
- touch-and-go
- touchy
- treacherous
- ugly
- unhealthy
- unsafe
- unstable
- urgent
- viperous
- vulnerable
- wicked
more poison
adjective. harmful
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.