Adjective
Surreptitious
;
secret
;
not
openly
acknowledged
.
Noun
The
attribute
or
characteristic
of
acting
in
secrecy
,
or
in
such
a
way
that
the
actions
are
unnoticed
or
difficult
to
detect
by
others
.
Verb
To
conceal
or
infiltrate
through
the
use
of
stealth
.