Englishvertical
adjective
in this exercise the legs are raised to an almost vertical position |
the manhole lid conceals a vertical shaft:
upright, erect, perpendicular, plumb, straight (up and down), on end, standing, upstanding, bolt upright, upended;
sheer, steep, sharp, precipitous, bluff, vertiginous;
Heraldry rampant;
rare acclivitous, declivitous, scarped.
▷antonyms horizontal, flat.
vertical Oxford Dictionary of English