1.
[syn: burdensome, onerous, taxing]
The Collaborative International Dictionary of English v.0.48:
Burdensome \Bur"den*some\, a.
Grievous to be borne; causing uneasiness or fatigue;
oppressive.
[1913 Webster]
The debt immense of endless gratitude
So burdensome. --Milton.
[1913 Webster]
Syn: Heavy; weighty; cumbersome; onerous; grievous;
oppressive; troublesome.
[1913 Webster] -- Bur"den*some*ly, adv. --
Bur"den*some*ness, n.
[1913 Webster]
WordNet (r) 3.0 (2006):
burdensome
adj 1: 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" [syn: burdensome, onerous, taxing]