dangerous as in involving or causing danger or risk

• "liable to hurt or harm"
• "a dangerous criminal"
• "a dangerous bridge"
• "unemployment reached dangerous proportions"

Synonyms

• unsafelacking in security or safety; involving or causing danger or risk; not safe from attack

dangerous as in causing fear or anxiety by threatening great harm

• "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

• graveshape (a material like stone or wood) by whittling away at it; carve, cut, or etch into a material or surface; death of a person; a place for the burial of a corpse (especially beneath the ground and marked by a tombstone); a mark (`) placed above a vowel to indicate pronunciation ; dignified and somber in manner or character and committed to keeping promises; causing fear or anxiety by threatening great harm; of great gravity or crucial import
• grievouscausing fear or anxiety by threatening great harm; causing or marked by grief or anguish; of great gravity or crucial import; shockingly brutal or cruel
• seriousconcerned with work or important matters rather than play or trivialities; of great consequence; causing fear or anxiety by threatening great harm; appealing to the mind; completely lacking in playfulness ; requiring effort or concentration
• severeintensely or extremely bad or unpleasant in degree or quality; very strong or vigorous; severely simple; unsparing and uncompromising in discipline or judgment; causing fear or anxiety by threatening great harm; very bad in degree or extent
• life-threateningcausing fear or anxiety by threatening great harm