roundabout

[1]	traffic circle , circle , rotary
[2]	carousel , carrousel , merry-go-round , whirligig
[3]	merry-go-round , carousel/carrousel , (Old-fashioned)/(Dialect) whirligig
[4]	(Brit) mini-roundabout , (US/Canadian) rotary , traffic circle

adj.

[1]	circuitous , circular , indirect , long
[2]	devious , circuitous , evasive , indirect , oblique
[3]	circuitous
[4]	devious , circuitous