2
undeviating
2
undistorted
2
unswerving
2
unturned
1
arrowlike
1
boxlike(adjective, regular, square, patterned, symmetrical)
1
boxy(adjective, regular, square, patterned, symmetrical)
1
collinear
1
dead straight
1
equal-sided(adjective, regular, square, patterned, symmetrical)
1
equilateral(adjective, regular, square, patterned, symmetrical)
1
flat
1
four-sided(adjective, regular, square, symmetrical, angled)
1
foursquare(adjective, regular, square, patterned, symmetrical)
1
inflexible
1
one-dimensional
1
orthogonal(adjective, regular, square, patterned, symmetrical)
1
oscillating
1
pendulous
1
plumb
11 years ago|1.3k views|share |citing 
APASmart Define. (2015). rectilinear thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/rectilinear/thesaurus/synonyms
ChicagoSmart Define. 2015. "rectilinear thesaurus" https://smartdefine.org/rectilinear/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, rectilinear thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/rectilinear/thesaurus/synonyms>.
MLASmart Define. "rectilinear thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/rectilinear/thesaurus/synonyms>