malady
bad health; illness; sickness
dismal
depressing; causing gloom or misery; causing bad feelings
malefactor
an evildoer; a person who does bad things
malfeasance
wrongdoing or bad conduct by a public official
malevolent
a word that describes a person or character who wishes bad things would happen to others
malice
mischief; evil intent; bad will
malignant
harmful; something bad enough that it could result in death when related to cancer
malodorous
bad smell; stinky
malnourished
having bad health or having poor nutrition
malaria
bad air; a disease usually spread by infected mosquitoes