Sage(noun)
A profoundly wise person; showing deep wisdom and good judgment. (?????? / ?????????)
Synonyms: Wise, Prudent, Judicious, Enlightened
Antonyms: Foolish, Ignorant, Unwise, Imprudent
Example: The old sage shared his life experiences with the young villagers.
Trick to remember: Sage wo hota hai jiske paas “saal” ka experience hota hai — matlab bahut samajhdaar aur gyani. 
