Dreadfulness, awfulness. Now rare.

= fearfulness, n.

Awfulness, terribleness, frightfulness.

= terribleness, n.

The state or quality of being terrible or causing intense fear or dread; a thing or person that causes terror; something terrifying. Also: the…

The quality of being terrible; dreadfulness, awfulness. Also: an instance of this.

Direness, dreadfulness.

The quality of being dire or of dreadful operation.

dreadfulness, terribleness.

Dire quality or matter, direness.

the quality of being terrific (in various senses).

The quality of being tremendous.

the quality of being fearsome. (a) Dreadfulness; terror. (b) Timidity.

gen. Terrifying or awesome quality.

The quality of being terrifying.