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

See also: critical

• get a move on
• get a noseful
• get a whiff
• get about
• Erolia alpina
• Erolia minutilla
• eros
• erose
• erose leaf
• erosion
• erosional
• erosive
• erotic
• erotic love
• erotica
• erotically
• eroticise
• eroticism
• eroticize
• erotism
• ERP
• err
• errancy
• errand
• errand boy