muscular and heavily built; "a beefy wrestler"; "had a tall burly frame"; "clothing sizes for husky boys"; "a strapping boy of eighteen"; "`buirdly' is a Scottish term"
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"
mutability in life or nature (especially successive alternation from one condition to another)
a variation in circumstances or fortune at different times in your life or in the development of something; "the project was subject to the usual vicissitudes of exploratory research"