blundering
blun-der-ing
adjective
Making foolish or clumsy mistakes due to incompetence or carelessness.
"The blundering politician caused a scandal."
noun
The act of making foolish or clumsy mistakes, often due to incompetence.
"His constant blundering led to dismissal."
Thesaurus
Synonyms: blunder, fumble, blurt, blunder out, blurt out, ejaculate, blooper, boo-boo, bloomer, boner, botch, flub