adjective
sincere
Synonyms: abiding, ardent, authentic, bona fide, candid, committed, complete, dedicated, determined, devoted, earnest, emphatic, enduring, enthusiastic, fervent, frank, genuine, heartfelt, hearty, impassioned, never-failing, passionate, real, serious, steadfast, steady, sure, true, unfaltering, unfeigned, unqualified, unquestioning, unreserved, unstinting, unwavering, warm, whole-hearted, zealous
Antonyms: disinterested, halfhearted, insincere, unenthusiastic
adjective
enthusiastic, sincere
Synonyms: abiding, ardent, authentic, bona fide, candid, committed, complete, dedicated, determined, devoted, earnest, emphatic, enduring, fervent, frank, genuine, heartfelt, hearty, impassioned, never-failing, passionate, real, serious, steadfast, steady, sure, true, unfaltering, unfeigned, unqualified, unquestioning, unreserved, unstinting, unwavering, warm, zealous
Antonyms: disinterested, halfhearted, insincere, unenthusiastic