What this suffix does
-witted describes how fast someone thinks: quick-witted / sharp-witted (fast, sharp mind, good under pressure) versus dim-witted / half-witted (slow to understand).

Suffix · forms adjectives
Describes how quickly someone thinks: quick-witted (sharp, fast-thinking) versus dim-witted (slow, not very sharp).
Written by Bryan López, English teacher · Updated
-witted describes how fast someone thinks: quick-witted / sharp-witted (fast, sharp mind, good under pressure) versus dim-witted / half-witted (slow to understand).
These compounds are the natural way to describe intelligence without sounding blunt. "Quick-witted" sounds better than "smart" for someone who responds fast and cleverly; "dim-witted" is a softer (though still clear) way to say someone is not very sharp.
Adjective + witted.
This is not a productive rule you can apply freely: it is a closed set of fixed expressions. Learn them one by one as set phrases.
-witted
Tap the button to hear how the ending sounds. Each word in the table has its own audio.
"Quick-witted" refers specifically to mental speed — the ability to come up with a clever or appropriate response very quickly, especially in conversation or under pressure. It does not refer to physical reflexes or general speed. A quick-witted person excels at repartee, debate, and rapid problem-solving.
"Dim-witted" implies that someone is slow to understand or process information — their "wit" is dim, like a low-wattage light. "Dull" can describe both mental slowness and a lack of interest or excitement (a dull lecture, a dull person). Both can insult, but "dim-witted" is more specific about cognitive speed.
A trick to remember it
Picture a lightbulb over someone's head: quick-WITTED = the bulb switches on instantly. dim-WITTED = the bulb barely glows. Brighter or dimmer, that's the scale.
Exercise 1 · Form the word
Exercise 2 · Pick the right one
"The sharp-witted attorney immediately identified the flaw in the argument." What does "sharp-witted" imply?
Exercise 3 · Form the word
The suffix -witted describes how quickly someone thinks: quick-witted (sharp, fast-thinking) versus dim-witted (slow, not very sharp). In Spanish it usually maps to de ingenio / de mente.
"quick" becomes "quick-witted". It is a typical example of the -witted suffix.
Describes how someone acts or uses their hands: heavy-handed (harsh, lacking tact) and even-handed (fair, impartial).
Describes someone's emotional character: warmhearted (kind, affectionate) and coldhearted (unfeeling, unkind).
Describes someone's way of thinking: open-minded (accepting of new ideas) versus narrow-minded (closed off, intolerant).
-tion, -ness, -ful, -ly, -able... every ending you need to understand thousands of words at once.