A ball filled completely with air is said to be inflated. What do you say if a ball is in a 'not that much inflated' condition? Is there a single word for it? Are there other words that give the same meaning as that of inflated/'not so inflated'
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2The prefix semi- can be applied to lots of different adjectives, including this one. "Semi-inflated" means "partially inflated." – Canadian Yankee Apr 19 '18 at 13:50
I think Underinflated is what you are looking for.
If it had once been gas filled, it could be deflated
deflated ADJECTIVE
1 Having been emptied of air or gas.
‘a deflated balloon’
