1. dangerous, unsafe

involving or causing danger or risk; liable to hurt or harm

Example Sentences:
'a dangerous criminal'
'a dangerous bridge'
'unemployment reached dangerous proportions'

Synonyms

• unsafe

Similar Words

• breakneck
• chanceful
• chancy
• dicey
• dodgy
• desperate
• hazardous
• risky
• wild
• insidious
• mordacious
• on the hook
• parlous
• perilous
• precarious
• touch-and-go
• self-destructive
• suicidal
• treacherous
• unreliable

Also See

• insecure
• unsafe
• vulnerable

2. dangerous, grave, grievous, life-threatening, serious, severe

causing fear or anxiety by threatening great harm

Example Sentences:
'a dangerous operation'
'a grave situation'
'a grave illness'
'grievous bodily harm'
'a serious wound'
'a serious turn of events'
'a severe case of pneumonia'
'a life-threatening disease'

Synonyms

• grave
• grievous
• life-threatening
• serious
• severe