excursive (adj.)
- aberrant
- aimless
- ambagious
- backhand
- backhanded
- circuitous
- circular
- desultory
- deviant
- deviating
- devious
- digressive
- discursive
- divergent
- episodic
- errant
- erratic
- helical
- indirect
- labyrinthine
- left-handed
- loose
- mazy
- meandering
- oblique
- orbital
- out-of-the-way
- planetary
- rambling
- rotary
- round
- roundabout
- roving
- serpentine
- shifting
- side
- sidelong
- sinister
- sinistral
- snaky
- spiral
- stray
- swerving
- turning
- twisting
- undirected
- vagrant
- wandering
- winding
- zigzag