adj. so lacking in interest as to cause mental weariness; "a boring evening with uninteresting people"; "the deadening effect of some routine tasks"; "a dull play"; "his competent but dull performance"; "a ho-hum speaker who couldn't capture their attention"; "what an irksome task the writing of long letters is"- Edmund Burke; "tedious days on the train"; "the tiresome chirping of a cricket"- Mark Twain; "other people's dreams are dreadfully wearisome"

adj. weak in color; not colorful

adj. causing dejection; "a blue day"; "the dark days of the war"; "a week of rainy depressing weather"; "a disconsolate winter landscape"; "the first dismal dispiriting days of November"; "a dark gloomy day"; "grim rainy weather"

adj. affected or marked by low spirits; "is dejected but trying to look cheerful"

adj. experiencing or marked by or causing sadness or sorrow or discontent; "unhappy over her departure"; "unhappy with her raise"; "after the argument they lapsed into an unhappy silence"; "had an unhappy time at school"; "the unhappy (or sad) news"; "he looks so sad"

adj. experiencing or marked by or expressing sorrow especially that associated with irreparable loss; "sorrowful widows"; "a sorrowful tale of death and despair"; "sorrowful news"; "even in laughter the heart is sorrowful"- Proverbs 14:13

adj. thickly covered with ingrained dirt or soot; "a miner's begrimed face"; "dingy linen"; "grimy hands"; "grubby little fingers"; "a grungy kitchen"

adj. filled or abounding with clouds

adj. tediously repetitious or lacking in variety; "a humdrum existence; all work and no play"; "nothing is so monotonous as the sea"

adj. lacking in spirit or animation

adj. lacking in liveliness or animation; "he was so dull at parties"; "a dull political campaign"; "a large dull impassive man"; "dull days with nothing to do"; "how dull and dreary the world is"; "fell back into one of her dull moods"

adj. lacking brilliance or vitality; "a dull lackluster life"; "a lusterless performance"

adj. lacking in vitality or interest or effectiveness; "a pale rendition of the aria"; "pale prose with the faint sweetness of lavender"; "a pallid performance"

adj. slow to learn or understand; lacking intellectual acuity; "so dense he never understands anything I say to him"; "never met anyone quite so dim"; "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray; "dumb officials make some really dumb decisions"; "he was either normally stupid or being deliberately obtuse"; "worked with the slow students"

adj. retarded in intellectual development

adj. relatively slow in mental or emotional or physical development; "providing a secure and sometimes happy life for the retarded"

adj. characterized by toilsome effort to the point of exhaustion; especially physical effort; "worked their arduous way up the mining valley"; "a grueling campaign"; "hard labor"; "heavy work"; "heavy going"; "spent many laborious hours on the project"; "set a punishing pace"

adj. not challenging; dull and lacking excitement; "an unglamorous job greasing engines"

adj. producing exhaustion; "an exhausting march"; "the visit was especially wearing"

adj. not easily borne; wearing; "the burdensome task of preparing the income tax return"; "my duties weren't onerous; I only had to greet the guests"; "a taxing schedule"

adj. causing irritation or annoyance; "tapping an annoying rhythm on his glass with his fork"; "aircraft noise is particularly bothersome near the airport"; "found it galling to have to ask permission"; "an irritating delay"; "nettlesome paperwork"; "a pesky mosquito"; "swarms of pestering gnats"; "a plaguey newfangled safety catch"; "a teasing and persistent thought annoyed him"; "a vexatious child"; "it is vexing to have to admit you are wrong"

adj. serving or tending to provoke, excite, or stimulate; stimulating discussion or exciting controversy; "a provocative remark"; "a provocative smile"; "provocative Irish tunes which...compel the hearers to dance"- Anthony Trollope

adj. capable of arousing interest or curiosity; "our team came up with some most intriguing finds"

adj. stimulating interest and discussion; "an exciting novel"

adj. so lacking in interest as to cause mental weariness; "a boring evening with uninteresting people"; "the deadening effect of some routine tasks"; "a dull play"; "his competent but dull performance"; "a ho-hum speaker who couldn't capture their attention"; "what an irksome task the writing of long letters is"- Edmund Burke; "tedious days on the train"; "the tiresome chirping of a cricket"- Mark Twain; "other people's dreams are dreadfully wearisome"

adj. lacking interest or significance; "an insipid personality"; "jejune novel"

adj. inducing mental lethargy; "a narcotic speech"

adj. lacking wit or imagination; "a pedestrian movie plot"

adj. labored and dull; "a ponderous speech"

adj. (of a book) so poorly written and unentertaining as to be easily put down

adj. arousing or holding the attention

adj. rousing or quickening activity or the senses; "a stimulating discussion"

adj. creating or arousing excitement; "an exciting account of her trip"