Question

hidebound So the Old Babylonian period was an era of great literary creativity in Akkadian, but the school curriculum, at least in the centres we know best, was evidently too hidebound to reflect this development.

Accepted Answer

adj. Unwilling or unable to change because of tradition or convention. The Epic of Gilgamesh, Introduction, p. xxi

Word	hidebound
Definition	adj. Unwilling or unable to change because of tradition or convention.
Sentence	So the Old Babylonian period was an era of great literary creativity in Akkadian, but the school curriculum, at least in the centres we know best, was evidently too hidebound to reflect this development.
Source	The Epic of Gilgamesh, Introduction, p. xxi

Hidebound Adj Unwilling Unable Change Tradition Convention Babylonian