wholehearted (adj.)

• abiding
• ardent
• authentic
• bound
• committed
• decided
• decisive
• dedicated
• definite
• determined
• devoted
• earnest
• enduring
• fervent
• genuine
• heartfelt
• hearty
• impassioned
• obstinate
• passionate
• persevering
• persistent
• purposeful
• relentless
• resolute
• resolved
• serious
• sincere
• single-minded
• steadfast
• steady
• tenacious
• unfaltering
• unfeigned
• unqualified
• unquestioning
• unwavering