As adjectives the difference between overt and nonunderground
is that overt is open and not secret nor concealed while nonunderground is (rare) not underground (hidden or secretive); overt, public, mainstream.
overt
Adjective
(-)
Open and not secret nor concealed.
Derived terms
* overtly
* overtness
Antonyms
* covert
* hidden
Anagrams
*
*
----
nonunderground
English
Adjective
(-)
(rare) Not underground (hidden or secretive); overt, public, mainstream.