52 entries under adjective topic. ×

6
unknown(obscure, dark, secret, hidden)
6
unobtrusive(verb, hidden, ignored, imagined)
6
unremarked(neglect, ignored, undiscovered, overlooked)
5
indiscernible(obscure, dark, unknown, hidden)
5
shrouded(verb, obscure, secret, unknown)
5
unmarked(neglect, covert, stealthy, unnoticed)
5
veiled(verb, secret, hidden, imperceptible)
4
unseeable
3
imaginary(verb, hidden, imagined)
3
impalpable(verb, hidden, imagined)
3
impenetrable(hidden, latency implication)
3
overlooked(covert, stealthy, unnoticed)
3
undescried(covert, stealthy, unnoticed)
3
unsuspected(verb, hidden, imagined, latency implication)
3
unwitnessed(covert, stealthy, unnoticed)
2
cryptic(obscure, dark, secret, unknown)
2
curtained(verb, hidden, imagined)
2
private(obscure, secret, unknown, hidden)
2
recondite(obscure, dark, secret, unknown)
2
unacknowledged(covert, stealthy, unnoticed)
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APASmart Define. (2015). unseen thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unseen/thesaurus/synonyms
ChicagoSmart Define. 2015. "unseen thesaurus" https://smartdefine.org/unseen/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, unseen thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unseen/thesaurus/synonyms>.
MLASmart Define. "unseen thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/unseen/thesaurus/synonyms>