Definition of tentatively in US English:

tentatively

adverb

  • 1Subject to further confirmation; not definitely.

    ‘the project is tentatively scheduled for next year’
    ‘unions tentatively agreed to a three-year contract’
    • ‘Tentatively, the conference is scheduled for September in Phoenix, Arizona.’
    • ‘We were tentatively booked as the middle act on a three-band cross-Canada tour.’
    • ‘We can tentatively draw two conclusions that bear on this larger debate.’
    • ‘Sessions are tentatively scheduled for 8 a.m. to 5 p.m.’
    • ‘His first teacher is said to have been Cornelis Buys, identified tentatively with the Master of Alkmaar.’
    1. 1.1 In a way that lacks confidence; hesitantly.
      ‘"Are you all right?" Claire asked tentatively’
      ‘I walked tentatively across the bridge’
      • ‘Tentatively, he reached out to take her hand.’
      • ‘The performance began tentatively but progressed to a rousing, very satisfying conclusion.’
      • ‘Worn out by looking after this miserable and ungrateful old man, she tentatively takes to drawing as an outlet for her depression.’
      • ‘He tentatively kisses the woman, who reacts ambivalently.’
      • ‘Ironically, drawing so tightly, so tentatively, helped my painting to be free.’

Pronunciation

tentatively

/ˈten(t)ədivlē//ˈtɛn(t)ədɪvli/