4
bulldozing(verb, threatening)
4
cowing(noun, verb, adjective, mean, sharp)
4
cruel(adjective, awful, terrible, horrible, afraid)
4
deadly(adjective, awful, terrible, horrible, afraid)
4
discouraging(verb, hard, severe, offensive, distressing)
4
surprising(verb, adjective, alarming)
4
terrorisation
4
truculent(adjective, strong, violent, hostile, hateful)
4
ungodly(adjective, awful, terrible, horrible, unreasonable)
4
unholy(adjective, awful, terrible, horrible, unreasonable)
4
vicious(adjective, awful, terrible, horrible, afraid)
4
woeful(adjective, awful, terrible, horrible, afraid)
3
abysmal(adjective, awful, terrible, horrible, afraid)
3
almighty(adjective, awful, terrible, horrible, afraid)
3
beastly(adjective, awful, terrible, horrible, afraid)
3
blatant(adjective, awful, terrible, horrible, afraid)
3
chronic(adjective, awful, terrible, horrible, afraid)
3
crashing(adjective, awful, terrible, horrible, afraid)
3
damnable(adjective, awful, terrible, horrible, afraid)
3
dangerous(adjective, strong, severe, intense, violent)
10 years ago|13k views|share |citing 
APASmart Define. (2016). frightening thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/frightening/thesaurus/synonyms
ChicagoSmart Define. 2016. "frightening thesaurus" https://smartdefine.org/frightening/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, frightening thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/frightening/thesaurus/synonyms>.
MLASmart Define. "frightening thesaurus" 23 March 2016. Web. 26 September 2026. <https://smartdefine.org/frightening/thesaurus/synonyms>