fearsome
This method of tree climbing involves a complex system of ropes, and is fearsomely dangerous.
The game is fearsomely competitive.
This is fearsomely difficult music to play.
SMART Vocabulary: related words and phrases Describing things that cause fear
awesome
awesomely
awesomeness
bloodcurdling
chilling
fearsome
frightening
frighteningly
greasily
hair-raising
intimidating
intimidatingly
scarifying
scarifyingly
scarily
spooky
terrifying
terrifyingly
traumatic
traumatically
You can also find related words, phrases, and synonyms in the topics:
Linguistics: very & extreme