Definition of mal- in English:

mal-

combining form

  • 1In an unpleasant degree.

    ‘malodorous’
  • 2In a faulty manner.

    ‘malfunction’
    1. 2.1 In an improper manner.
      ‘malpractice’
    2. 2.2 In an inadequate manner.
      ‘malnourishment’
  • 3Not.

    ‘maladroit’

Origin

From French mal, from Latin male badly.

Pronunciation:

mal-

/mal/