19 entries under unbelievable topic. ×

12
implausible(adjective, hard, difficult, likely, unlikely)
8
improbable(adjective, unreasonable, dubious, unlikely, flimsy)
8
unlikely(adjective, improbable, unbelieveable)
7
incredible(adjective, unreasonable, dubious, unlikely, flimsy)
6
fantastic(adjective, false, extravagant, unlikely)
6
preposterous(adjective, hard, difficult, false, extravagant)
2
far-fetched(unlikely, improbable)
1
obscure(unreasonable, dubious, unlikely, flimsy)
1
suspect(unreasonable, dubious, shady, unlikely, flimsy)
1
unconvincing(adjective, unreasonable, dubious, unlikely, flimsy)
0
flimsy(unreasonable, dubious, unlikely, improbable)
0
inconceivable(unreasonable, dubious, unlikely, flimsy)
0
puzzling(unreasonable, dubious, unlikely, flimsy)
0
questionable(dubious, suspect, shady, unlikely)
0
reachy(unreasonable, dubious, unlikely, flimsy)
0
thin(unreasonable, dubious, unlikely, flimsy)
0
unreasonable(hard, difficult, dubious, unlikely, flimsy)
0
unsubstantial(unreasonable, dubious, unlikely, flimsy)
0
weak(unreasonable, dubious, unlikely, flimsy)
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APASmart Define. (2015). farfetched thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/farfetched/thesaurus/synonyms
ChicagoSmart Define. 2015. "farfetched thesaurus" https://smartdefine.org/farfetched/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, farfetched thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/farfetched/thesaurus/synonyms>.
MLASmart Define. "farfetched thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/farfetched/thesaurus/synonyms>