the.com/troublesome
The adjective for anything that won't behave, from toddlers to spreadsheets to that one toe.
means Causing difficulty, annoyance, or worry — persistently enough to earn its own label.
from Trouble comes from Latin turbidus, to stir up or muddy; the suffix -some adds the flavor of being full of it, like wholesome or burdensome.
Built-in nuisanceThe -some suffix literally means tending toward something.
Gentler than terribleImplies bother and friction, not catastrophe.
Old reliableIn steady English use since the 1540s.