ellipticalEnglishOxford American Thesauruselliptical adjective 1 an elliptical orbit: oval, egg-shaped, elliptic, ovate, ovoid, oviform, ellipsoidal; technical obovate. 2 the elliptical phraseology of the law: terse, concise, succinct, compact, economic, brief, laconic, sparing, pithy, curt, clipped; abstruse, cryptic, ambiguous, obscure, incomprehensible, unfathomable, oblique, recondite, Delphic. ▷antonyms clear, direct.