BURDENSOME
burdensome, onerous, taxing
(adjective) 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”
Source: WordNet® 3.1
Etymology
Adjective
burdensome (comparative more burdensome, superlative most burdensome)
Characteristic of a burden; arduous or demanding
Synonyms
• (of or like a burden): arduous, demanding, exacting, onerous, taxing
Source: Wiktionary
Bur"den*some, a.
Definition: Grievous to be borne; causing uneasiness or fatigue;
oppressive.
The debt immense of endless gratitude So burdensome. Milton.
Syn.
– Heavy; weighty; cumbersome; onerous; grievous; oppressive;
troublesome.
– Bur"den*some*ly, adv.
– Bur"den*some*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition