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