The definition of bumptious is someone who is proud or self-assertive in an obnoxious or irritating way.
(adjective)A businessman who is always talking about how smart and rich he is and who is constantly telling you why he is the best person to manage your business is an example of someone who is bumptious.
See bumptious in Webster's New World College Dictionary
adjective
Origin: prob. < bump, by analogy with fractious
Related Forms:
See bumptious in American Heritage Dictionary 4
adjective
Origin:
Origin: Perhaps blend of bump
Origin: and presumptuous
.Related Forms:
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