untrue
adjective
1. not according with the facts
- unfortunately the statement was simply untrue
Similar word(s): false
2. not true to an obligation or trust
- is untrue to his highest opportunity and duty
Similar word(s): unfaithful
3. not accurately fitted; not level
- off-level floors and untrue doors and windows
Similar word(s): uneven
4. (used especially of persons) not dependable in devotion or affection; unfaithful
- when lovers prove untrue
Similar word(s): inconstant, false