Chemical Testing Vocabulary

noun A noun is a word that represents a person, place, thing, or idea. In this case, 'untested' can also be used as a noun to refer to something that has not been tested.

adjective An adjective is a word that describes or modifies a noun or pronoun. In this case, 'untested' describes something that has not been tried or proven.

• The new medication is untested and requires further clinical trials.
• I wouldn't trust that untested product without more information.
• I'm not trying that untested stuff, who knows what it could do.
• His untested theory fell apart under closer scrutiny.