unsuitable (
http://definr.com/unsuitable)
adj 1: not meant or adapted for a particular purpose; "a solvent
unsuitable for use on wood surfaces"
2: not capable of being applied; "rules inapplicable to day
students" [syn:
inapplicable]
3: not conducive to good moral development; "the movie is
unsuitable for children"
4: not worthy of being chosen (especially as a spouse) [syn:
undesirable]
5: not appropriate for a purpose or occasion; "unsuitable
attire for the office"; "said all the wrong things" [syn:
improper,
wrong]