Sam uses the word as an adjective at 1:56.14 of episode #205 with Daniel Markovits when he qualifies a point he is making by saying, “…this is somewhat inchoate a concern”, meaning the concern is not a fully developed one.
Inchoate may also be used as a noun and a verb, according to Wiktionary.
Noun
inchoate (plural inchoates)
Meaning: A beginning, an immature start.
Verb
inchoate (third-person singular simple present inchoates, present participle inchoating, simple past and past participle inchoated)
Meanings: (transitive) To begin or start (something); (transitive) To cause or bring about; (intransitive) To make a start.