Definition of suppositional in US English:

suppositional

adjective

  • See supposition

    • ‘Willingness to understand differences at the suppositional level can also generate goodwill.’

Pronunciation

suppositional

/ˌsəpəˈzɪʃ(ə)n(ə)l//ˌsəpəˈziSH(ə)n(ə)l/