Ruefully(adverb)
In a way that expresses sorrow or regret.
Hindi meaning:खेदपूर्वक
Synonyms: Sorrowfully, Regretfully, Mournfully
Antonyms: Gladly, Gleefully, Delightfully, Blithely
Example: Edmund ruefully picked up the pieces of the picture frame he had accidentally broken.
Trick to remember: Rone jaisa full muh bnakar ruefully dikhate hai. 
