covert
adjective /ˈkʌvət/, /ˈkəʊvɜːt/
/ˈkəʊvɜːrt/
(formal)- secret or hidden, making it difficult to notice
- covert operations/surveillance
- He stole a covert glance at her across the table.
- Every measure, both overt and covert, is being taken against terrorists.
Oxford Collocations DictionaryCovert is used with these nouns:- action
- agent
- glance
- …
Word OriginMiddle English (in the general senses ‘covered’ and ‘a cover’): from Old French, ‘covered’, past participle of covrir, from Latin cooperire, from co- (expressing intensive force) + operire ‘to cover’.