unquick
/(ˌ)ʌnˈkwɪk/ /(ˌ)ʌŋˈkwɪk/adjective
1Lifeless, dead. Also of a fetus: that has not yet reached the stage of quickening. Now rare or archaic.
2Not lively, active, or quick-witted.
Origin
Late Middle English; earliest use found in Reginald Pecock (c1392–?1459), bishop of Chichester and religious author. From un- + quick.