Toilsome \Toil"some\ (-s[u^]m), a. Attended with toil, or fatigue and pain; laborious; wearisome; as, toilsome work.

What can be toilsome in these pleasant walks? --Milton. -- Toil"some*ly, adv. -- Toil"some*ness, n.

Source: Webster's Revised Unabridged Dictionary (1913)