6
rectilinear
3
linear
2
even
2
level
2
smooth
2
straight(adjective, curved, aligned)
1
collinear
1
direct
1
flat
1
horizontal
1
lineal
1
one-dimensional
1
right
1
streamlined
1
true
1
unbending
1
unbent
1
unbowed
1
unbroken
1
undeviating
<12>
11 years ago|895 views|share |citing 
APASmart Define. (2015). rectilineal thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/rectilineal/thesaurus/synonyms
ChicagoSmart Define. 2015. "rectilineal thesaurus" https://smartdefine.org/rectilineal/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, rectilineal thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/rectilineal/thesaurus/synonyms>.
MLASmart Define. "rectilineal thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/rectilineal/thesaurus/synonyms>