Synonyms for perpendicular

Similarity of adj perpendicular

3 senses of perpendicular

Sense 1:

perpendicular (vs. oblique) (vs. parallel)
normalorthogonal, rectangularright

Sense 2:

vertical (vs. inclined) (vs. horizontal), perpendicular
plumbupendedupright, unsloped

Also See: steep#1; straight#2

Sense 3:

perpendicular
steep (vs. gradual)