1. Causing fear or dread or terror
   "horrendous explosions shook the city"
   - awful, dire, direful, dread, dreaded, dreadful, fearful, fearsome, frightening, horrific, terrible

See also: alarming

• boughed
• boughless
• boughten
• bougie
• bouillabaisse
• bouillon
• bouillon cube
• boulder
• boulder clay
• boulder fern
• bouldered
• bouldering
• bouldery
• boule
• boulevard
• boulevardier
• bouleversement
• Boulez
• boulle
• bounce
• bounce back
• bounce out
• bounced check
• bounced cheque
• bouncer