1
intimidating
1
luridness
1
minatory
1
nightmarish(adjective, frightening)
1
outrageous
1
skanky
1
spine chilling
1
squally
1
threatening
1
trepid
0
abominably
0
abysmally
0
appallingly
0
atrociously
0
august
0
awfully
0
awfulness
0
badly
0
brutally
0
causing horror(expression, idiom)
11 years ago|6.5k views|share |citing 
APASmart Define. (2015). direful thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/direful/thesaurus/synonyms
ChicagoSmart Define. 2015. "direful thesaurus" https://smartdefine.org/direful/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, direful thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/direful/thesaurus/synonyms>.
MLASmart Define. "direful thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/direful/thesaurus/synonyms>