2
whimsical(changeable, erratic, random)
1
agnostic
1
ambivalent(doubtful, vague, hesitant, changeable, unsure)
1
causeless
1
conjectural(doubtful, vague, hesitant, changeable, unsure)
1
destinal
1
doubting
1
dubious(adjective, doubtful, vague, unsure)
1
equivocal
1
extraordinary
1
fatal
1
fatidic
1
fitful(doubtful, vague, hesitant, changeable, unsure)
1
from left field(expression, adjective, idiom, unpredictable, changeable)
1
hanging by a thread(expression, idiom, doubtful, hesitant, changeable)
1
hesitating
1
improbable
1
inconstant(doubtful, vague, hesitant, changeable, unsure)
1
indemonstrable
1
irregular(doubtful, vague, hesitant, changeable, unsure)
11 years ago|1.9k views|share |citing 
APASmart Define. (2015). unforeseeable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unforeseeable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unforeseeable thesaurus" https://smartdefine.org/unforeseeable/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, unforeseeable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unforeseeable/thesaurus/synonyms>.
MLASmart Define. "unforeseeable thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/unforeseeable/thesaurus/synonyms>