burdensome

Etymology

burden + -some

adj

1. Characteristic of a burden; arduous or demanding
   . . . reap a pleasure from what, to the generality of mankind, may seem burdensome and laborious. 1748, David Hume, Enquiries concerning the human understanding and concerning the principles of morals, London: Oxford University Press, published 1973, § 6
   Finally, there are the commuter trains. Both companies operate these around the big cities and both find them burdensome, owing to the lack of off-peak travel. 1959 November, J. N. Westwood, “The Railways of Canada”, in Trains Illustrated, page 555