mis- +

1. An unfortunate event; especially, something unlucky, or amusing, that happens to someone.
2. In law, a death due to an unintentional accident without any violation of law or criminal negligence.

1. From a bad source, badly thought out, or generally deplorable from start to finish.
2. Obtained by dishonest means.
3. Born to parents who are not married to each other.

1. To be naughty and troublesome, or to otherwise behave in an unacceptable way.
2. To function badly or not at all, or to cause problems.
3. To conduct one self without regard for good manners or accepted moral standards.

Unacceptable conduct, especially naughtiness, disobedience, or causing trouble that is exhibited, particularly, by children.

To use the wrong, or an inappropriate, name for someone or something.

1. Reckless, or malicious, behavior that causes discomfort or annoyance in others.
2. The quality, or nature, of being harmful or evil.
3. Behavior, especially by children, that is undesirable or troublesome without being malicious.

A wrong or mistaken claim.

A mistaken idea or view resulting from a misunderstanding of something.

1. Bad or dishonest management by people who are supposed to act on another's behalf.
2. An activity that transgresses moral or civil law; wrongdoing, wrongful conduct
3. To behave badly, misbehave: "The children misbehaved all morning".
4. To manage badly or incompetently: "The funds were mismanaged resulting in a decline in the company's profits."

To understand, or to interpret, something incorrectly; or to mistake the meaning of something.

1. Originally an infidel, heretic, pagan, or heathen; literally, being of the “wrong belief”.
2. Misbelieving, heretical; unbelieving, infidel.
3. A vile wretch; a villain, a depraved rascal; or a generally malicious and contemptible person.
4. Etymology: from Old French mescreant, "heretical, unbelieving, infidel"; from mes-, "wrongly"; from Latin mis-, "wrong" + creant, creire, "belief, to believe"; from Latin credere, "to believe".

A wicked, blameworthy, or unlawful act.

1. A crime which is less serious than a felony and resulting in a less severe legal punishment.
2. A relatively minor misdeed.

1. To make an incorrect diagnosis.
2. To diagnose erroneously.

A wrong or mistaken diagnosis.