different between unacceptably vs unacceptable

English

unacceptable +? -ly

unacceptably (comparative more unacceptably, superlative most unacceptably)

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.

From Middle English unacceptabylle, equivalent to un- +? acceptable.

(UK) IPA^(key): /??n.æk.?s?p.t?.bl?/, /??n.?k.?s?p.t?.bl?/, [??n.æk.?s?p.t??.b??], [??n.?k.?s?p.t??.b??]
(US) IPA^(key): /??n.æk.?s?p.t?.bl?/, /??n.?k.?s?p.t?.bl?/, [??n.æk.?s?p.t??.b??], [??n.??k.?s?p.t??.b??]

unacceptable (comparative more unacceptable, superlative most unacceptable)

unacceptable (plural unacceptables)

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