Synonyms for Congruent:

adj.

•agreeable, harmonious (adjective)
corresponding, identical, coinciding.
•all (adjective)
congruous.
•united (adjective)
fundamental, united, indivisible, integral, undivided, solid, coincident, cohesive, integrated, holistic, same, single, atomic, uniform, elemental, pure, irreducible, monolithic, simple, unified, congruous, intact, complete, coherent, entire, homogeneous.

n.

clean, chunky, bulbous, angular, corresponding, like, closed, aerodynamic, concave, asymmetrical, bent, concentric. comparable, not unlike, alike, similar, near, close, indistinguishable, sort of. •congruent (noun)
harmonious, appropriate, superposable, coinciding, coincident, congruous, identical.

Other synonyms:

•Other relevant words:
comparable, appropriate, coinciding, identical, similar, like, superposable, harmonious, alike, corresponding.