vertical (n.)
vertical (adj.)
- abrupt
- apical
- bluff
- bold
- breakneck
- capital
- chief
- consummate
- direct
- downright
- erect
- even
- flat
- head
- headlong
- horizontal
- level
- lineal
- linear
- maximal
- maximum
- meridian
- meridional
- normal
- paramount
- perpendicular
- plumb
- precipitous
- preeminent
- rampant
- rapid
- rearing
- rectilineal
- rectilinear
- right
- sharp
- sheer
- smooth
- stand-up
- steep
- straight
- streamlined
- supreme
- top
- topmost
- true
- ultimate
- unbending
- unbent
- unbowed
- unbroken
- uncurved
- undeviating
- undistorted
- uninterrupted
- unswerving
- unturned
- upended
- upmost
- uppermost
- upraised
- upright
- upstanding
- zenithal
