Adjectives as a separate word class do not exist. Instead stative verbs are used to convey meanings equivalent to those conveyed by adjectives in languages such as English. Serialized verb constructions are used to express degree with stative verbs. Otherwise, adverbials such as wé̱lwé̱l ‘very, thoroughly’ can follow a stative verb that has an adjectival meaning.
Source: Faraclas 1996: 228