brainless

As brainless for all higher purposes as Murat, the young Bishop was a born cavalry officer.

That young fellow, I unhesitatingly assert, must be the most brainless of his type.

Especially he had despised the young men as brainless cowards in regard to their views of women and conduct toward them.

He threatened to punch me up, and I knew he was just the sort of a brainless fellow to do it.