Bumptious

//ˈbʌmpʃəs// adj

Definitions

Adjective
  1. 1
    Obtrusively pushy; self-important; self-assertive to a pretentious extreme. UK

    "[…"

Adjective
  1. 1
    offensively self-assertive wordnet

Etymology

Probably from bump, on the pattern of words like fractious or presumptious.

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