not very quick Antonyms

sonic alacritous airborne overdrive witted vulpine volar volant turbo trickish timeserving tantivy swift autodidactic duplicitous sideward Shannon on the spot street-smart high-speed mountain pass like fun speed of light shoelace in short order quicky quickie speedy speeder slighty conusant cometary calculative brisk breve breakneck blistering belletristic avian astucious alar aeronautical deep-laid deviceful skull rapid pennate oversoon meteoric manipulative