furthermore

mastery
UK /ˈfɜː(ɹ).ðə(ɹ)ˌmɔː(ɹ)/ US /ˈfɝ.ðɚˌmoɹ/adv

card 1 of 10 · fill in the blank

The suspect was intelligent, and furthermore, he had a _____ demeanor that made him hard to read.