- a combining form meaning “bad,” “wrongful,” “ill,” occurring originally in loanwords from French (malapert); on this model, used in the formation of other words (malfunction; malcontent).
- bad or badly; wrong or wrongly; imperfect or defectivemaladjusted; malfunction
word-forming element meaning “bad, badly, ill, poorly, wrong, wrongly,” from French mal (adv.), from Old French mal (adj., adv.) “evil, ill, wrong, wrongly” (9c.), from Latin male (adv.) “badly,” or malus (adj.) “bad, evil” (fem. mala, neuter malum), of unknown origin, perhaps related to Avestan mairiia “treacherous.” Most Modern English words with this prefix are 19c. coinages. pref.
- Bad; badly:malpractice.
- Abnormal; abnormally:malformation.