commensurate, proportionate

tantamount, virtual

allied, congeneric, congenerous, congenial, connatural, kin, kindred, relatable, related

approaching, approximating, close, coextensive, coincident, conformable, conforming, consistent, consonant, duplicate, equal, equivalent, fungible, identical, indistinguishable, interchangeable, me-too, redundant, same, selfsame, substitutable, synonymous, twin

entire, homogeneous, homogenous, unchanging, uniform, unvaried, unvarying