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 ]