prefix "non" words
Please be sure my baby's formula is nondairy because he has related allergies.
Many diets include nonfat yogurt.
Nonfiction books are based on true stories.
Aliens are nonhuman creatures.
Volunteers usually work for nonprofit organizations.
Some nonsense words become famous even though they have no meaning.
It's best to clean with nontoxic cleansers.
Body language is a popular form of nonverbal communication.