unacceptably

adverb

No English definition recorded for this entry.

L201894 on Wikidata ↗

Wiktionary

adv

Etymology: Etymology tree English unacceptable Middle English -ly English -ly English unacceptably From unacceptable + -ly.

Not within the limits of what is generally considered to be acceptable.
“The levels of lead in marine hull paints are still unacceptably high.”
“Your comments are unacceptably provocative.”