dangerously

UK: /ˈdeɪndʒərəsli/

WordReference Random House Learner's Dictionary of American English © 2026

dan•ger•ous /ˈdeɪndʒərəs/   adj. 

1. full of danger or risk:
   a dangerous intersection.
2. able or likely to cause physical injury:
   Smoking may be dangerous to your health.

dan•ger•ous•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2026

dan•ger•ous  (dān′jər əs, dānj′rəs), adj. 

1. full of danger or risk;
   causing danger;
   perilous;
   risky;
   hazardous;
   unsafe.
2. able or likely to cause physical injury:
   a dangerous criminal.

• Old French dangereus threatening, difficult, equivalent. to dangier (see danger) + -eus -ous
• Middle English da(u)ngerous domineering, fraught with danger 1175–1225

dan′ger•ous•ly, adv. 
dan′ger•ous•ness, n.