dull

Definitions of dull in various dictionaries:

verb - make dull in appearance

verb - become dull or lusterless in appearance

verb - deaden (a sound or noise), especially by wrapping

verb - make numb or insensitive

verb - make dull or blunt

verb - become less interesting or attractive

verb - make less lively or vigorous

adj - lacking in liveliness or animation

adj - emitting or reflecting very little light

adj - being or made softer or less loud or clear

adj - so lacking in interest as to cause mental weariness

adj - (of color) very low in saturation

adj - not keenly felt

adj - slow to learn or understand

adj - (of business) not active or brisk

adj - not having a sharp edge or point

adj - blunted in responsiveness or sensibility

adj - not clear and resonant

adj - darkened with overcast

Intellectually weak or obtuse; stupid.

Lacking responsiveness or alertness; insensitive.

Dispirited; depressed.

Not brisk or rapid; sluggish: Business is dull.

Not having a sharp edge or point; blunt: a dull knife.

Not intensely or keenly felt: a dull ache.

Arousing no interest or curiosity; boring: a dull play.

Not bright or vivid.

Cloudy or overcast: a dull sky.

The central meaning shared by these adj ectives is “lacking in liveliness, charm, or surprise”: a competent but dull performance of the role; a colorless and unimaginative person; a drab and boring job; a humdrum conversation; a lackluster life; a pedestrian movie plot; a stodgy dinner party; an uninspired lecture.

adj - mentally slow

verb - to make less sharp