106 entries under dreadful topic. ×

23
scary(adjective, nasty, unpleasant, awful, disgusting)
21
execrable(adjective, taste, nasty, offensive, unpleasant)
21
nauseous(adjective, taste, nasty, offensive, unpleasant)
17
noisome(adjective, bad, taste, nasty, offensive)
17
hideous(adjective, appearance, taste, nasty, dislike)
16
shocking(adjective, nasty, offensive, unpleasant, awful)
16
beastly(adjective, nasty, offensive, unpleasant, awful)
16
heinous(adjective, taste, nasty, offensive, unpleasant)
16
ugly(adjective, appearance, bad, nasty, dislike)
15
appalling(adjective, taste, nasty, offensive, unpleasant)
15
despicable(verb, adjective, good, person, nasty)
15
wretched(verb, adjective, good, person, nasty)
13
bad(adjective, severe, nasty, pain, offensive)
13
terrible(adjective, bad, nasty, offensive, unpleasant)
12
filthy(adjective, good, bad, taste, nasty)
12
evil(adjective, obscure, nasty, offensive, unpleasant)
11
mean(adjective, good, nasty, offensive, unpleasant)
10
horrendous(adjective, severe, nasty, offensive, unpleasant)
10
lousy(noun, adjective, good, bad, nasty)
10
unspeakable(adjective, bad, taste, unpleasant, awful)
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APASmart Define. (2016). obnoxious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/obnoxious/thesaurus/synonyms
ChicagoSmart Define. 2016. "obnoxious thesaurus" https://smartdefine.org/obnoxious/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, obnoxious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/obnoxious/thesaurus/synonyms>.
MLASmart Define. "obnoxious thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/obnoxious/thesaurus/synonyms>