Improper vs Unsatisfactory - What's the difference?

improper | unsatisfactory |

As adjectives the difference between improper and unsatisfactory

is that improper is unsuitable to needs or circumstances; inappropriate; inapt while unsatisfactory is inadequate, substandard or not satisfactory.

As a verb improper

is (obsolete|transitive) to appropriate; to limit.



Alternative forms

* impropre (obsolete)


(en adjective)
  • unsuitable to needs or circumstances; inappropriate; inapt
  • Not in keeping with conventional mores or good manners; indecent or immodest
  • Not according to facts; inaccurate or erroneous
  • Not consistent with established facts; incorrect
  • Not properly named; See, for example, improper fraction
  • (obsolete) Not specific or appropriate to individuals; general; common.
  • * J. Fletcher
  • Not to be adorned with any art but such improper ones as nature is said to bestow, as singing and poetry.

    Derived terms

    * improper divisor * improper face * improper fit * improper fraction * improper integral * improper motion * improper node * improper orthogonal transformation * improper rotation * improper use * improper workmanship


    (en verb)
  • (obsolete) To appropriate; to limit.
  • * Jewel
  • He would in like manner improper and inclose the sunbeams to comfort the rich and not the poor.
  • (obsolete) To behave improperly
  • (Webster 1913)




    (en adjective)
  • inadequate, substandard or not satisfactory