Bitterly

Adverb

 * 1) In a bitter manner.

Thesaurus
abominably, acerbically, acerbly, acidly, acridly, acrimoniously, agonizingly, awfully, baldly, balefully, bitingly, blatantly, brashly, caustically, confoundedly, corrodingly, corrosively, cruelly, cuttingly, damnably, deadly, deathly, deucedly, distressingly, dolorously, dreadfully, egregiously, excessively, excruciatingly, exorbitantly, extravagantly, flagrantly, frightfully, grievously, hardly, hellishly, horribly, improperly, incisively, inexcusably, infernally, inordinately, intolerably, keenly, lamentably, miserably, mordaciously, mordantly, nakedly, openly, painfully, penetratingly, piercingly, piteously, rancorously, sadly, scathingly, scorchingly, sharply, shatteringly, shockingly, something awful, something fierce, sorely, stabbingly, staggeringly, tartly, terribly, torturously, trenchantly, unashamedly, unbearably, unconscionably, unduly, unpardonably, witheringly, woefully

Translations

 * Catalan: amargament


 * Spanish: