invariant

constant equal flush horizontal invariable level parallel plane plumb proportional regular right same smooth square stabile stable steady straight true uniform

alike balanced changeless consistent continual continuous direct equable homogenous matching metrical planate surfaced unbroken unchanging undeviating unfluctuating uninterrupted unvaried unvarying unwavering unwrinkled

broken changeable changing corrupt different dishonest disloyal disorderly disproportionate dissimilar divergent imbalanced inconsistent inconstant intermittent irregular rough uneven unfair unfixed unjust unlike unstable unsteady untrustworthy upright variable varying vertical wavering wobbly