false

adjective

• 1not according with truth or fact; incorrect:the test can produce false results the allegations were false
• not according with rules or law:false imprisonment

• 2appearing to be the thing denoted; deliberately made or meant to deceive:check to see if the trunk has a false bottom a false passport
• artificial:false eyelashes
• feigned:a horribly false smile

• 3illusory; not actually so:sunscreens give users a false sense of security
• [attributive] used in names of plants, animals, and gems that superficially resemble the thing properly so called, e.g., false oat, false killer whale.

• 4treacherous; unfaithful:a false lover