This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. Present participle of antiquate.

"It's outstripping our capacity to cope, antiquating our laws, transforming our mores, reshuffling our economy, reordering our priorities, redefining our workplaces, putting our Constitution to the fire, shifting our concept of reality and making us sit for long periods in front of computer screens while CD-ROM drives grind out another video clip."

antiquated    antiquates    antiquating   

change    modify    alter   

age    outdate    unmodernize