Spring chicken and Unfamiliar with

Spring chicken noun - A young chicken having tender meat.

Unfamiliar with and spring chicken are semantically related in inexperienced topic. In some cases you can use "Unfamiliar with" instead an adjective phrase "Spring chicken", when it comes to topics like unskilled.

Unfamiliar with adjective - Having little or no knowledge of.

Spring chicken and unfamiliar with are semantically related in inexperienced topic. Sometimes you can use "Spring chicken" instead an adjective "Unfamiliar with", if it concerns topics such as unskilled.