Meaning: In a secretive and illicit way.
Hindi meaning:गुप्त रूप से
Synonyms: Covertly, Surreptitiously, Stealthily, Confidentially, Furtively, Incognito
Antonyms: Overtly, Candidly, Openly, Evidently
Example: Traffickers operate clandestinely.
Trick to remember: Ye land Clandestinely le lete hai.