Wet behind the ears is an idiom used to describe someone who is inexperienced or immature. The crossword solutions for this term are GREEN (5 letters), NAIVE (5 letters), RAW (3 letters), CALLOW (6 letters), NEW (3 letters), JUVENILE (8 letters), and DOWNYCHEEKED (12 letters). GREEN can refer to a lack of experience, NAIVE implies innocence and gullibility, RAW suggests inexperience, CALLOW implies youth and immaturity, NEW implies unfamiliarity, JUVENILE implies childishness, and downycheeked implies youthfulness.