IMPROPER

adj not according to facts; inaccurate; erroneous.

2. improper ·adj not peculiar or appropriate to individuals; general; common.

3. improper ·vt to appropriate; to limit.

4. improper ·adj not proper; not suitable; not fitted to the circumstances, design, or end; unfit; not becoming; incongruous; inappropriate; indecent; as, an improper medicine; improper thought, behavior, language, dress.