Noah Webster's Dictionary 1. (a.) Habitually idle and lazy; slothful; dull; inactive; as, a sluggish man. 2. (a.) Slow; having little motion; as, a sluggish stream. 3. (a.) Having no power to move one's self or itself; inert. 4. (a.) Characteristic of a sluggard; dull; stupid; tame; simple.

Multi-Version Concordance Sluggish (1 Occurrence) Hebrews 6:12 that you won't be sluggish, but imitators of those who through faith and patience inherited the promises. (WEB ASV DBY NAS RSV)