As an adjective witless
is destitute of wit or understanding; wanting thought; hence, indiscreet; not under the guidance of judgment.
As an adverb witlessly is
in a witless manner.
witless
Adjective
(
en adjective)
Destitute of wit or understanding; wanting thought; hence, indiscreet; not under the guidance of judgment.
Usage notes
* This term is frequently found in phrases such as (term), (term), and so on.