Verses with the word fearfulness in the Old Testament (3 verses):

Psalms 55:5
Fearfulness and trembling are come upon me, and horror hath overwhelmed me.

Isaiah 21:4
My heart panted, fearfulness affrighted me: the night of my pleasure hath he turned into fear unto me.

Isaiah 33:14
The sinners in Zion are afraid; fearfulness hath surprised the hypocrites. Who among us shall dwell with the devouring fire? who among us shall dwell with everlasting burnings?