D defs.my
Entry 1 sense Webster, 1913

Controversial

/känˌ-trəv-ẽrsh'-əl/ · Con·tro·ver·sial · IPA /ˌkɑn.tɹəˈvɝ.ʃəl/
01 a. Relating to, or consisting of, controversy; disputatious; polemical; as, controversial divinity.
  1. 1.
    Relating to, or consisting of, controversy; disputatious; polemical; as, controversial divinity.
    “Whole libraries of controversial books.” Macaulay.