Definition of unmenseful in English:

unmenseful

adjective

English Regional, Scottish, Northern
  • Improper, unseemly, indecent; impolite, ill-mannered; disgraceful; disorderly, untidy; rough, wild.

Origin

Late 16th century. From un- + mense + -ful.

Pronunciation

unmenseful

/(ˌ)ʌnˈmɛnsfʊl/