I guess - definition and synonyms

phrase informal
  1. used when you are saying something that you think is probably true or correct
    I guess (that):

    I guess I’ll never be able to explain.

    I guess not:

    ‘So you won’t be going there again?’ ‘I guess not.’

    I guess so (=used for saying yes, but not very strongly):

    ‘Were you happy with the result?’ ‘Well, I guess so.’

See also main entry: guess