coequal (adj.)
- analogous
- answering
- balanced
- coextensive
- coincident
- coincidental
- coinciding
- complemental
- complementary
- congruent
- convertible
- coordinate
- correspondent
- corresponding
- coterminous
- equal
- equilateral
- equivalent
- even
- fellow
- finished
- harmonious
- homologous
- identical
- like
- mate
- parallel
- proportioned
- reciprocal
- reciprocative
- regular
- symmetric
- synonymous
- tantamount
- twin
- uniform
- well-balanced
- well-set