unfitting
adjective
[ ʌnˈfɪtɪŋ ]
• not fitting or suitable; unbecoming.
• "certain occupations were held unfitting for baptized believers"
unfit
verb
• make (something or someone) unsuitable; disqualify.
• "they say that we are trying to give poor children tastes which will only unfit them for a life of hardship and toil"