5
unaccustomed(adjective, unusual, strange, new, special)
4
aberrant(adjective, excellent, unusual, special, brilliant)
4
atypical(adjective, excellent, strange, special, original)
4
deviant(adjective, nonconforming)
4
eccentric(adjective, unusual, strange, new, special)
4
offbeat(adjective, unusual, strange, odd, weird)
3
anomalous(adjective, excellent, unusual, special, brilliant)
3
crazy(adjective, unusual, strange, unique, eccentric)
3
fantastic(unusual, special, rare, unconformity)
3
freakish(adjective, unusual, strange, special, odd)
3
funny(adjective, nonconforming)
3
idiosyncratic(adjective, unusual, strange, odd, unique)
3
noteworthy(excellent, solid, extraordinary, unusual, wonderful)
3
novel(adjective, unusual, strange, new, special)
3
oddball(adjective, unusual, strange, odd, weird)
3
out-of-the-way
3
quaint
3
quirky(adjective, unusual, strange, eccentric, nonconforming)
3
unexpected
2
deranged(adjective, nonconforming)
11 years ago|5.6k views|share |citing 
APASmart Define. (2015). uncustomary thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/uncustomary/thesaurus/synonyms
ChicagoSmart Define. 2015. "uncustomary thesaurus" https://smartdefine.org/uncustomary/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, uncustomary thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/uncustomary/thesaurus/synonyms>.
MLASmart Define. "uncustomary thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/uncustomary/thesaurus/synonyms>