IPA: /ˈæntiˌɡrævɪti/
KK: /ˈæntiˌgrævɪti/
Relating to the reduction or cancellation of the effects of gravity.
The scientists are working on an antigravity device that could change how we travel.
A theoretical concept that suggests the ability to counteract or eliminate the force of gravity.
Scientists are exploring the possibilities of antigravity technology for future space travel.
Antigravity is formed from "anti-" (meaning against) and "gravity" (from Latin "gravitas", meaning weight). The word describes a phenomenon that counteracts or opposes the force of gravity.
Think of 'against' ('anti-') the 'weight' ('gravity') — that's why antigravity refers to something that opposes the force of weight.
No commonly confused words.