2
unreported
2
unutterable
2
unwritten
2
without measure(expression, idiom, infinity)
2
without number(expression, idiom, infinity)
1
X(strange, new, remote, mysterious, indefinite)
1
alien(strange, new, remote, mysterious, indefinite)
1
all-comprehensive
1
all-inclusive
1
amaranthine(constant, abundant, unrestrained, endless, immense)
1
anonymous(strange, indefinite, unidentified)
1
at issue
1
bottomless(absolute, vast, endless, immense, infinite)
1
cabalistic
1
ceaseless(constant, abundant, unrestrained, endless, immense)
1
censored
1
classified
1
closed
1
conditional
1
conditioned
11 years ago|5.5k views|share |citing 
APASmart Define. (2015). untold thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/untold/thesaurus/synonyms
ChicagoSmart Define. 2015. "untold thesaurus" https://smartdefine.org/untold/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, untold thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/untold/thesaurus/synonyms>.
MLASmart Define. "untold thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/untold/thesaurus/synonyms>