unable
adjective
[ ʌnˈeɪb(ə)l ]
• lacking the skill, means, or opportunity to do something.
• "she was unable to conceal her surprise"
Similar:
not able,
powerless,
impotent,
not up/equal to,
at a loss,
inadequate,
ineffectual,
incompetent,
unfit,
unfitted,
unqualified,
incapable of,
impuissant,
