hairpin (n.)
- aberrancy
- aberration
- bend
- bias
- chevron
- corner
- crankiness
- crook
- crookedness
- curve
- curvy
- declination
- departure
- detour
- deviance
- deviation
- deviousness
- digression
- divagation
- divarication
- divergence
- diversion
- dogleg
- double
- drift
- drifting
- errantry
- excursion
- excursus
- indirection
- obliquity
- rambling
- shift
- shifting
- slant
- sweep
- swerve
- swerving
- swinging
- tack
- turn
- turning
- twist
- variation
- wandering
- warp
- yaw
- zag
- zig
- zigzag