deflated /dɪˈfleɪtɪd/ adjective6 •Empty of all the air or gas that was or could be inside.While, of course it is not advisable to run on a deflated tire, tests have been made which showed that this type of tire was not damaged after it was running several miles. — 1924 •(figurative) Disappointed; depressed, especially after having been hopeful or in high spirits.I sat down in the lounge at K.G. very deflated and also concerned. — 2013 •Suffering from deflation.I am not talking about a deflated economy. — 1969 •Reduced or lowered.Instead, a terrific escalation of corporate rivalries was combined with a deflated power medium and an exceedingly inflated influence medium, particularly in the area of purely technical expertise. — 1976 •Subsided or compressed downward.A deflated hearth, about 5 m² in area, lay on the northernmost section of the surface concentration. — 1986 •Adjusted downward to compensate for inflation.In general, the output measure used in calculating these indexes is based on a deflated value concept and is developed in the following way: — 1971 formsmore deflated · most deflated