presumptuousness

Definitions of presumptuousness
1

n audacious (even arrogant) behavior that you have no right to

“he despised them for their presumptuousness
Synonyms:
assumption, effrontery, presumption
Types:
uppishness, uppityness
assumption of airs beyond one's station
Type of:
audaciousness, audacity
aggressive boldness or unmitigated effrontery

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