Words That Rhyme With "Birectangular" :
3 syllables:
angular, annular, cannular, dangler, granular, haggler, mangler, saccular, scapular, singular, ungular, wranglers
4 syllables:
hexangular, nonsingular, octangular, oracular, penannular, pentangular, piacular, rectangular, spiracular, subscapular, transannular, triangular, vernacular