1. Contestable: That may be disputed or debated; disputable; controvertible

2. Antonyms for Apodeictic include anApodeictic, answerable, arguable, contradictable, controvertible, debatable, disputable, doubtable, moot and negotiable

3. Arguable: adjective at issue , contestable , controvertible , debatable , disputable , in dispute , in question , up for discussion Associated concepts: Arguable

4. 1600, "dispute (something), oppose by argument" (a sense now obsolete); 1610s, "to make the subject of verbal contention, debate, discuss; contend against (someone) in argument," probably a back-formation from controversy.Related: Controverted; Controverting; Controvertible.

5. 1600, "dispute (something), oppose by argument" (a sense now obsolete); 1610s, "to make the subject of verbal contention, debate, discuss; contend against (someone) in argument," probably a back-formation from controversy.Related: Controverted; controverting; controvertible.