New answers tagged slang
1
Short answer is no, AFAIK.
However, if I may go beyond your restriction of "na-adjectives", things get interesting.
For example, daikon だいこん is pronounced as deekon でーこん. Daikon is not an adjective, but you see a similar pattern as sugoi / sugee.
BTW, this is not limited to Tokyo-ben. We say Okayama-ben turns "daikon taitoite" だいこんたいといて （...
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