unsuitable

Adjective

• not worthy of being chosen (especially as a spouse)

• not conducive to good moral development
  • the movie is unsuitable for children
    

• not capable of being applied
  • rules inapplicable to day students
    

• not meant or adapted for a particular purpose
  • a solvent unsuitable for use on wood surfaces
    

Related words

• Synonyms: 
  undesirable , inapplicable