In a blank manner; SYN. without expression.

In an empty manner

In a frothy manner.

In a silly manner, foolishly, without sense; emptily

In a vacant manner.

In a vacuous manner.

ETYM Old Eng. blank, blonc, blaunc, blaunche, from French blanc, fem. blanche, from Old High Germ. blanch shining, bright, white, German blank; akin to Eng. blink, cf. also AS. blanc white.
1. Not charged with a bullet.
2. Of a surface; not written or printed on; SYN. clean, white.
3. Void of expression.

Completely lacking.
Being without a usual, typical, or expected attribute or accompaniment — used with of

1. Having nothing inside
2. Holding or containing nothing
3. Devoid of significance or point; SYN. hollow, vacuous.
4. Emptied of emotion
5. Needing nourishment; SYN. empty-bellied.

ETYM French, from Latin vacans, -antis, p. pr. of vacare to be empty, to be free or unoccupied, to have leisure, also vocare; akin to vacuus empty, and probably to Eng. void. Related to Evacuate, Void.
1. Void of thought or knowledge.
2. Without an occupant or incumbent.

ETYM Latin vacuus. Related to Vacant.
Empty; unfilled; void; vacant.

ETYM Old Eng. voide, Old Fren. voit, voide, vuit, vuide, French vide, from (assumed) Late Lat. vocitus, from Latin vocare, an old form of vacare to be empty, or a kindred word. Related to Vacant, Avoid.
Containing nothing.

ETYM Old Eng. blank, blonc, blaunc, blaunche, from French blanc, fem. blanche, from Old High Germ. blanch shining, bright, white, German blank; akin to Eng. blink, cf. also AS. blanc white.
1. Not charged with a bullet.
2. Of a surface; not written or printed on; SYN. clean, white.
3. Void of expression.