7
rude(adjective, rough, offensive, strange, foolish)
7
rum(adjective, eccentric, ridiculousness)
7
senseless(adjective, silly, foolish, ridiculous, absurd)
7
silly(adjective, foolish, ridiculous, absurd, unwise)
7
striking(adjective, exceptional)
7
uncanny(adjective, unusual, strange, odd, unreal)
7
unheard-of(adjective, obscure, strange, unique, bizarre)
7
whimsical(adjective, unusual, wild, strange, crazy)
6
tasteless(adjective, rough, offensive, strange, coarse)
6
deviant(adjective, nonconforming)
6
external(adjective, experience, unusual, distant, different)
6
idiotic(adjective, silly, foolish, absurd, unwise)
6
impossible(adjective, hard, difficult, extraordinary, silly)
6
inane(adjective, silly, foolish, absurd, unwise)
6
nutty(adjective, unusual, wild, strange, foolish)
6
oddball(adjective, unusual, wild, strange, crazy)
6
off-the-wall
6
remote(adjective, experience, new, distant, different)
6
stupid(adjective, offensive, rude, wild, silly)
6
unprecedented(adjective, obscure, strange, new, exceptional)
10 years ago|20k views|share |citing 
APASmart Define. (2016). outlandish thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/outlandish/thesaurus/synonyms
ChicagoSmart Define. 2016. "outlandish thesaurus" https://smartdefine.org/outlandish/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, outlandish thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/outlandish/thesaurus/synonyms>.
MLASmart Define. "outlandish thesaurus" 30 March 2016. Web. 24 September 2026. <https://smartdefine.org/outlandish/thesaurus/synonyms>