Adamantly(adverb)
Meaning: In a way that suggests one will not be persuaded to change one's mind
Hindi meaning:बात पर अटल रहे
Synonyms: Firmly, Resolutely, Obdurately, Tenaciously, Stubbornly, Staunchly
Antonyms: Waveringly, Changeably, Flexibly, Amenably
Example: His family were adamantly opposed to the marriage.
Trick to remember: Ada hua rehta hai Adamant person. 
