(adj): predicate) -- ((usually followed by `to') lacking necessary physical or mental ability
(adj): predicate) -- (not being susceptible to or admitting of something (usually followed by `of')
(adj): vs. susceptible), insusceptible -- (not susceptible to
(adj): vs. capable) -- ((followed by `of') not having the temperament or inclination for
(adj): predicate) -- (not meeting requirements
(adj): vs. adequate), unequal -- (lacking the requisite qualities or resources to meet a task
I came across this in the local press:
"A man was arrested in the city centre for being drunk and incapable at the weekend."
I asked a local Bobby what this actually meant. "Well drunk means drunk," he said. I presume this is not a crime, otherwise you would have to arrest Scotland. "Incapable means he couldn't stand up by himself. In these cases we call it in, they're picked up and sent to the shelter."