1. Causing fear or anxiety by threatening great harm
   "a life-threatening disease"
   - dangerous, grave, grievous, serious, severe

See also: critical

• consular
• consulate
• consulship
• consult
• consultancy
• consultant
• consultation
• consultative
• consultatory
• consulting company
• consulting firm
• consulting service
• consultive
• consumable
• consume
• consumer
• consumer credit
• consumer durables
• consumer finance company
• consumer goods
• consumer loan
• consumer price index
• consumer research
• consumerism
• consuming