We don't have synonyms for adnate yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are agnate, annate and adnata.
(adj) :
(botany, mycology) Linked or fused to a structure of a type different from itself; for example, attachment of a stamen to a petal is adnate, while attachment of a stamen to another stamen is connate.
(adj) :
(zoology) Growing with one side adherent to a stem; applied to the lateral zooids of corals and other compound animals. in fish, having the eyes fused and unable to rotate independently
(adj) :
(botany, mycology) Linked or fused to a structure of a type different from itself; for example, attachment of a stamen to a petal is adnate, while attachment of a stamen to another stamen is connate.
(adj) :
(zoology) Growing with one side adherent to a stem; applied to the lateral zooids of corals and other compound animals. in fish, having the eyes fused and unable to rotate independently