undercover, adj.
freq. cnt. 1
freq. cnt. 1
conducted with or marked by hidden aims or methods
<adj.all> (a) freq. cnt.: 4 freq. cnt.: 2 freq. cnt.: 1 freq. cnt.: 1
clandestine cloak-and-dagger hole-and-corner hugger-mugger hush-hush secret surreptitious undercover underground
sample sentences
"clandestine intelligence operations""cloak-and-dagger activities behind enemy lines"
"hole-and-corner intrigue"
"secret missions"
"a secret agent"
"secret sales of arms"
"surreptitious mobilization of troops"
"an undercover investigation"
"underground resistance"
lexical pointers
derivationally related form
semantic pointers
similar to