green as a gooseberry

Very young, immature, and/or inexperienced. Are you sure he's fit to run your campaign? He's just out of college and still as green as a gooseberry!

Name	Pronounced	Usage
Kuzey	-	Turkish
Trinity	TRIN-i-tee	English
Zhelimir	-	Medieval Slavic (Hypothetical)
Tzidkiyahu	-	Biblical Hebrew
Yarognev	-	Medieval Slavic
Bacheler	['bætʃələ]