Definition of "bashfulness"

I, smiling in his face, took the letter, and immediately catching gently hold of his shirt sleeve, drew him towards me, blushing, and almost trembling; for surely his extreme bashfulness, and utter inexperience, call'd for, at least, all the advances to encourage him

1749, [John Cleland], “(Please specify the letter or volume)”, in Memoirs of a Woman of Pleasure [Fanny Hill], London: […] G. Fenton [i.e., Fenton and Ralph Griffiths] […]