sincerely Antonyms

insincerely sharply bombastically listlessly lukewarmly calculatingly maliciously untruthfully euphemistically skeptically suspiciously deviously lackadaisically allegedly slily slyly turbidly uncertainly underhand underhanded underhandedly foxily disingenuously unnaturally dishonorably dispassionately slavishly slickly sneakily snidely stagily traitorously treacherously treasonably unemotionally unscrupulously shiftily scurrilously satirically hypocritically sycophantically unctuously half-heartedly insidiously pretentiously reticently roguishly sacrilegiously sardonically untruly