Wiktionary
misbutton
vb. (context transitive English) To button wrongly.
Usage examples of "misbutton".
They were hastily fumbling to do up the buttons of their frocks, and were misbuttoning most of them.
A practical woman who didn't believe in dragons yet studied dragon tapestries and wore a misbuttoned shirt.
She stood before him wearing nothing but her shoes and her misbuttoned shirt.
She longs to see his goofy face, the iron-filing haircut, the bug eyes, the shirt misbuttoned in his haste.
Their uniforms were only partly buttoned, and often misbuttoned, at that.
He had misbuttoned his Scholar’s tunic, and forgotten—or failed, anyhow, to comb his thinning hair.