0 slow to understand or learn; not very intelligent:
He was an unimaginative and dull-witted man.
Under Professor B even the dull-witted students would show at least a faint sparkle of intelligence.
His brother was very charming but he was considered the dull-witted one with little charisma.
The show features a whole cast of Dickensian villains - dull-witted aristocrats, time-servers, corrupt spongers.
