I’m thinking of something like surfeitous, but obviously that’s not a word.
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You could try overabundant or overindulgent, depending on how you mean surfeit.
The OED attests (what it calls) the participial adjective surfeited, meaning:
The first citation is from Shakespeare, and two of the later ones are:
The now rare word surfeiting is not an adjective, but a verbal noun (or “gerund”) with the same sense as surfeit itself. For example: