Furnishing little delight, spirit, or variety; uninteresting; tedious; cheerless; gloomy; melancholy; depressing; as, a dull story or sermon; a dull occupation or period; hence, cloudy; overcast; as, a dull day.
To dwell on or recur to a subject tediously or monotonously in speaking or in writing; to refer to something repeatedly or continually; usually with on or upon.
