ROGET THESAURUS
heartburning
Regret
N
regret, repining, homesickness, nostalgia, mal du pays, maladie, lamentation, penitence, bitterness,
heartburning, recrimination (accusation), laudator temporis acti, regretting, regretful, homesick, regretted, much to be regretted, regrettable, lamentable, regrettably, unfortunately, most unfortunately, Int, alas!, what a pity!, hang it!, 'tis pity, 'tis too true, sigh'd and look'd and sigh'd again, I'm sorry.
Enmity
N
enmity, hostility, unfriendliness, discord, bitterness, rancor, alienation, estrangement, dislike, hate,
heartburning, animosity, malevolence, inimical, unfriendly, hostile, at enmity, at variance, at daggers drawn, at open war with, up in arms against, in bad odor with, on bad terms, not on speaking terms, cool, cold, cold hearted, estranged, alienated, disaffected, irreconcilable.