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secretive

1 ENTRIES FOUND:
secretive /ˈsiːkrətɪv/ adjective
secretive
/ˈsiːkrətɪv/
adjective
Britannica Dictionary definition of SECRETIVE
[more secretive; most secretive]
: not letting people see or know what you are doing or thinking : tending to act in secret

— secretiveness

noun [noncount]