adverb, adverb taking the 'to' particle
brazenly; shamelessly; audaciously
Describes saying or doing something bold and unapologetic, often with a negative connotation of lacking shame. Commonly used with 言う or する.
彼はぬけぬけと嘘をついた。
He told a lie brazenly.
That person shamelessly makes unreasonable requests.
alternating wins and losses (sumo)
Sumo term for a wrestler's record of alternating wins and losses every other day. Not used in general contexts.
That wrestler has an alternating win-loss record this tournament.
adverb, adverb taking the 'to' particle
stupidly; cluelessly
Archaic adverbial use meaning to act in a foolish or unaware manner. Not used in modern Japanese.
In old texts, 'ぬけぬけと' can describe a foolish or clueless manner.
nari-adjective (archaic / formal)
slipping away secretly; sneaking out
Archaic adjectival use (nari-adjective) meaning to sneak away or slip out unnoticed. Obsolete in modern Japanese.
In classical Japanese, 'ぬけぬけなり' was used to mean slipping away secretly.
He lied, and yet he brazenly refuses to admit it.
He broke his promise but showed up as if nothing had happened.