Synonyms for inflate

verb

1. To fill with air or gas

   blow up, pump up, puff up, puff out, expand, bloat, distend, swell, swell up, dilate, spread out, widen, balloon, cram, surcharge; see also fill 1, stretch 2, swell.

2. To increase or raise abnormally

   exaggerate, magnify, stretch, overstate, aggrandize, exalt, blow up, build up, boost, raise, maximize, overestimate, escalate, mount, skyrocket, expand, balloon, swell, augment, enlarge; see also exaggerate, increase 1.

   Antonyms underestimate*, deflate, minimize. See syn. study at expand.expand.