studeerkamergeleerde

Etymology
Compound of.

Noun

 * 1)  An academic or expert who mostly engages in theoretical work or speculation from the confines of a study not outfitted for empirical testing.

Usage notes

 * Studeerkamergeleerde is often but not necessarily derogatory. But unlike English terms such as armchair scholar it usually does not suggest that the denotee is an amateur or dilettante.