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. resulting in punishment; "the king imposed a punishing tax"

adj. impressively difficult; "a tall order"

adj. characterized by or performed with much energy or force; "strenuous exercise"

adj. hard to endure; "fell upon trying times"

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. 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. requiring precise accuracy; "an exacting job"; "became more exigent over his pronunciation"

adj. having a debilitating effect; "an exhausting job in the hot sun"

adj. not forbearing; ruthless; "an unsparing critic"

adj. (of sleep) deep and complete; "a heavy sleep"; "fell into a profound sleep"; "a sound sleeper"; "deep wakeless sleep"

adj. causing distress or worry or anxiety; "distressing (or disturbing) news"; "lived in heroic if something distressful isolation"; "a disturbing amount of crime"; "a revelation that was most perturbing"; "a new and troubling thought"; "in a particularly worrisome predicament"; "a worrying situation"; "a worrying time"

adj. made of lead; "a leaden weight"

adj. weighing heavily on the senses or spirit; "the atmosphere was oppressive"; "oppressive sorrows"