/ ˌəʊvərɪnˈfleɪtɪd; NAmE ˌoʊ-/ adjective
1.
( of a price or value ) too high :
overinflated house prices
2.
made to seem better, worse, more important, etc. than it really is
SYN exaggerated
3.
filled with too much air :
Overinflated tyres burst more easily.