1.  sympathizer(n = noun.person) comforter, sympathiser - commiserates with someone who has had misfortune;
is a kind of communicator
has particulars: job's comforter
Derived form verb sympathize₃

2.  sympathizer(n = noun.person) sympathiser, well-wisher - someone who shares your feelings or opinions and hopes that you will be successful;
is a kind of admirer, booster, champion, friend, protagonist, supporter
has particulars: bleeding heart, fellow traveler, fellow traveller
Derived form verb sympathize₁

   One who sympathizes. [1913 Webster]

N  friend, friend of one's bosom, alter ego, best friend, bosom friend, soulmate, fast friend, amicus, usque ad aras, fidus Achates, persona grata, acquaintance, neighbor, next-door neighbor, casual acquaintance, nodding acquaintance, wellwisher, favorer, fautor, patron, Mecaenas, tutelary saint, good genius, advocate, partisan, sympathizer, ally, friend in need, comrade, mate, companion, familiar, confrere, comrade, camarade, confidante, intimate, old crony, crony, chum, pal, buddy, bosom buddy, playfellow, playmate, childhood friend, bedfellow, bedmate, chamber fellow, associate, colleague, compeer, schoolmate, schoolfellow, classfellow, classman, classmate, roommate, fellow-man, stable companion, best man, maid of honor, matron of honor, compatriot, fellow countryman, countryman, shopmate, fellow-worker, shipmate, messmate, fellow companion, boon companion, pot companion, copartner, partner, senior partner, junior partner, Arcades ambo Pylades and Orestes Castor and Pollux, Nisus and Euryalus, Damon and Pythias, par nobile fratrum, host, Amphitryon, Boniface, guest, visitor, prot_eg_e, amici probantur rebus adversis, ohne bruder kann man leben nicht ohne Freund, best friend, my well-spring in the wilderness, conocidos muchos amigos pocos, friend more divine than all divinities, vida sin amigo muerte sin testigo.

N  benevolence, Christian charity, God's love, God's grace, good will, philanthropy, unselfishness, good nature, good feeling, good wishes, kindness, kindliness, loving-kindness, benignity, brotherly love, charity, humanity, fellow-feeling, sympathy, goodness of heart, warmth of heart, bonhomie, kind-heartedness, amiability, milk of human kindness, tenderness, love, friendship, toleration, consideration, generosity, mercy, charitableness, bounty, almsgiving, good works, beneficence, the luxury of doing good, acts of kindness, a good turn, good offices, kind offices good treatment, kind treatment, good Samaritan, sympathizer, bon enfant, altruist, benevolent, kind, kindly, well-meaning, amiable, obliging, accommodating, indulgent, gracious, complacent, good-humored, warm-hearted, kind-hearted, tender-hearted, large-hearted, broad- hearted, merciful, charitable, beneficent, humane, benignant, bounteous, bountiful, good-natured, well-natured, spleenless, sympathizing, sympathetic, complaisant, well-meant, well-intentioned, fatherly, motherly, brotherly, sisterly, paternal, maternal, fraternal, sororal, friendly, with a good intention, with the best intentions, Int, Godspeed!, much good may it do!, act a charity sometimes, a tender heart, a will inflexible, de mortuis nil nisi bonum, say only good things about the dead, don't speak ill of the dead, kind words are more than coronets, quando amigo pide no hay manana, the social smile, the sympathetic tear.

N  pity, compassion, commiseration, bowels, of compassion, sympathy, fellow-feeling, tenderness, yearning, forbearance, humanity, mercy, clemency, leniency, charity, ruth, long- suffering, melting mood, argumentum ad misericordiam, quarter, grace, locus paenitentiae, sympathizer, advocate, friend, partisan, patron, wellwisher, pitying, pitiful, compassionate, sympathetic, touched, merciful, clement, ruthful, humane, humanitarian, tender, tender hearted, tender as a chicken, soft, soft hearted, unhardened, lenient, exorable, forbearing, melting, weak, Int, for pity's sake!, mercy!, have mercy!, cry you mercy!, God help you!, poor thing!, poor dear!, poor fellow!, woe betide!, quis talia fando temperet a lachrymiss!, one's heart bleeding for, haud ignara mali miseris succurrere disco, a fellow feeling makes one wondrous kind, onor di bocca assai giova e poco costa.