Noah Webster's Dictionary 1. (a.) Not proper; not appropriate; not fitted to the circumstances, design, or end; unfit; not becoming; incongruous; inappropriate; indecent; as, an improper medicine; improper thought, behavior, language, dress. 2. (a.) Not peculiar or appropriate to individuals; general; common. 3. (a.) Not according to facts; inaccurate; erroneous. 4. (v. t.) To appropriate; to limit.

Multi-Version Concordance Improper (3 Occurrences) Romans 1:28 Even as they refused to have God in their knowledge, God gave them up to a reprobate mind, to do those things which are not fitting; (See RSV) 1 Corinthians 14:35 If they desire to learn anything, let them ask their own husbands at home, for it is shameful for a woman to chatter in the assembly. (See NAS) Ephesians 5:3 But fornication and every kind of impurity, or covetousness, let them not even be mentioned among you, for they ought not to be named among God's people. (See NIV)