Answer: sincerer

AnswerCrossword Clue
SINCERERMore heartfelt
SINCERERLess disingenuous
SINCERERMore forthright.
SINCERERMore upright
SINCERERLess affected
SINCERERComparatively honest
SINCERERMore honest
sincererFree from pretense or deceit; proceeding from genuine feelings
sincerer(of a person) Saying what they genuinely feel or believe; not dishonest or hypocritical
sincererSINCERE, genuine (authentic)