1
clashing(adjective, hard, severe, sharp, flat)
1
coarse(adjective, hard, severe, sharp, flat)
1
craggy(adjective, hard, severe, sharp, flat)
1
creaking(adjective, hard, severe, sharp, flat)
1
croaking(adjective, hard, severe, sharp, flat)
1
diaphonic
1
disagreeing(adjective, hard, severe, sharp, rough)
1
disconsonant
1
disharmonic
1
disharmonious
1
disturbing(adjective, hard, severe, sharp, flat)
1
dour(adjective, severe, bleak, stark, austere)
1
earsplitting(adjective, hard, severe, sharp, flat)
1
glaring(adjective, hard, severe, sharp, flat)
1
gnominious
1
grim(adjective, hard, severe, sharp, flat)
1
guttural(adjective, hard, severe, sharp, flat)
1
hard(adjective, severe, sharp, flat, rough)
1
hoarse(adjective, hard, severe, sharp, flat)
1
immelodious
11 years ago|2.1k views|share |citing 
APASmart Define. (2015). off-key thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/off-key/thesaurus/synonyms
ChicagoSmart Define. 2015. "off-key thesaurus" https://smartdefine.org/off-key/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, off-key thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/off-key/thesaurus/synonyms>.
MLASmart Define. "off-key thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/off-key/thesaurus/synonyms>