(a.) of or pertaining to billows; swelling or swollen into large waves; full of billows or surges; resembling billows.

bagging baggy ballooning bellying bent billowing bloated bosomy bulbose bulbous bulging bumped bumpy bunched bunchy curvaceous curvate curvated curve curved curvesome curviform curvilineal curvilinear curving curvy distended geosynclinal hillocky hummocky incurvate incurvated incurved incurving labyrinthine mazy meandering moutonnee pneumatic potbellied pouching recurvate recurvated recurved recurving rolling rounded serpentine sinuous surgy swelling tortuous undulant undulate undulated undulating undulative undulatory verrucated verrucose warty wavy