Definition of infinitival in English:

infinitival

adjective

Grammar
  • Denoting or involving the basic infinitive form of a verb.

    ‘an infinitival verb’
    • ‘an infinitival clause’

Pronunciation

infinitival

/ˌinfinəˈtīvəl/ /ˌɪnfɪnəˈtaɪvəl/