someone who doesn't like or can't do physical activity. Or any activity really. Keep wanting to say 'inclined' but that isn't it, of course.
closed as off-topic by k1eran, Drew, Hot Licks, Edwin Ashworth, choster Jun 5 '17 at 14:20
This question appears to be off-topic. The users who voted to close gave this specific reason:
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This usually suggests little or no physical activity, but seems to me to be used in situations where the the avoidance of physical activity is deliberate or at least the consequence of choice. This may not meet your requirement for an inability to do physical activity.
What about an invalid. See definition - http://www.dictionary.com/browse/invalid?s=t