noun which may take the genitive case particle 'no'
incompatible; unsupported; not compatible
Used to describe something that does not work with, support, or match another thing, often in technical or formal contexts.
このソフトは古いOSには非対応です。
This software is incompatible with older operating systems.
当店はクレジットカード非対応となっております。
This store does not accept credit cards.
A more explicit phrase meaning 'lacks compatibility', often used in technical specifications.
Formed from the prefix 非 (hi-, 'non-') and 対応 (taiou, 'compatibility, support').