80 entries under afraid topic. ×

16
terrifying(adjective, unpleasant, awful, terrible, disgusting)
15
heinous(adjective, evil, unpleasant, awful, violent)
15
tremendous(adjective, pain, awful, terrible, fear)
14
beastly(adjective, nasty, unpleasant, awful, violent)
14
harrowing(adjective, pain, awful, terrible, horrible)
13
wicked(adjective, offensive, awful, terrible, dirty)
12
morbid(adjective, nasty, awful, terrible, gloomy)
12
vicious(adjective, evil, nasty, awful, violent)
11
dread(adjective, awful, terrible, horrible)
11
odious(adjective, awful, terrible, horrible)
10
cruel(adjective, appearance, evil, unpleasant, awful)
10
wretched(adjective, awful, terrible, horrible)
9
gross(adjective, nasty, awful, terrible, vile)
8
flagitious(adjective, awful, terrible, horrible)
8
grievous(adjective, awful, terrible, horrible)
8
hair-raising(adjective, awful, terrible, horrible)
8
unholy(adjective, dislike, unpleasant, awful, terrible)
7
abysmal(adjective, awful, terrible, horrible)
7
deadly(adjective, awful, terrible, horrible)
7
direful(adjective, awful, terrible, fear, horrible)
10 years ago|22k views|share |citing 
APASmart Define. (2016). frightful thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/frightful/thesaurus/synonyms
ChicagoSmart Define. 2016. "frightful thesaurus" https://smartdefine.org/frightful/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, frightful thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/frightful/thesaurus/synonyms>.
MLASmart Define. "frightful thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/frightful/thesaurus/synonyms>