sincere 0097 # adolos {ad'-ol-os}; from 1 (as a negative particle}; and 1388; undeceitful, i.e. (figuratively) unadulterated: -- {sincere}.
sincere 1506 # eilikrines {i-lik-ree-nace'}; from heile (the sun's ray) and 2919; judged by sunlight, i.e. tested as genuine (figuratively): -- pure, {sincere}.