unslotunslotted — adj. Not slotted. unslothful — adj. Not slothful. unslothfully — adv. In an unslothful manner. unslothfulness — n. Quality of being unslothful.Where does the verb unslot come from? The earliest known use of the verb unslot is in the 1820s. OED's earliest evidence for unslot is from 1827, in