3
subterranean
3
subterraneous
3
surreptitious
3
ulterior
3
undercover
3
underground
3
unrevealed
2
cheap
2
insidious
2
peaceful
2
selfish
2
strong(force, power, which, might)
2
sub-rosa
2
under-the-table
1
autobiography
1
cute
1
niggardly
1
protected
1
support
0
QT
11 years ago|314 views|share |citing 
APASmart Define. (2015). covert thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/covert/thesaurus/related
ChicagoSmart Define. 2015. "covert thesaurus" https://smartdefine.org/covert/thesaurus/related (accessed September 24, 2026).
HarvardSmart Define 2015, covert thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/covert/thesaurus/related>.
MLASmart Define. "covert thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/covert/thesaurus/related>