Meaning : Not meant or adapted for a particular purpose.
Example :
A solvent unsuitable for use on wood surfaces.
Meaning : Not capable of being applied.
Example :
Rules inapplicable to day students.
Synonyms : inapplicable
Meaning : Not conducive to good moral development.
Example :
The movie is unsuitable for children.
Meaning : Not worthy of being chosen (especially as a spouse).
Synonyms : undesirable