Greek Strong's Lexicon

G1506

Lemma: εἰλικρινής

Transliteration: i-lik-ree-nace'

Definition: from heile (the sun's ray) and κρίνω; judged by sunlight, i.e. tested as genuine (figuratively)

KJV Definition: pure, sincere

Verse usage

Filipensenan 1:10 NASB
so that you may approve the things that are excellent, in order to be sincere and blameless until the day of Christ;
2 Pedro 3:1 NASB
This is now, beloved, the second letter I am writing to you in which I am stirring up your sincere mind by way of reminder,