seriously

Synonyms: actively all joking aside cool it cut the comedy determinedly down earnestly fervently for real gravely in all conscience in all seriousness in earnest intently passionately purposefully resolutely sedately simmer down sincerely soberly solemnly sternly straighten out thoughtfully vigorously with a straight face with forethought with sobriety zealously

Antonyms: funnily lightly

Synonyms: acutely badly decidedly deplorably distressingly gravely grievously harmfully intensely menacingly perilously precariously quite regrettably severely sorely threateningly very

Antonyms: casually minor trivially