'prɑbəblɪ /'prɒ- adv. +with considerable certainty; without much doubt +easy to believe on the basis of available evidence
(very) likely, in all likelihood, in all probability, undoubtedly, doubtlessly, indubitably, unquestionably, presumably, quite, all things considered, to all intents and purposes, possibly, perhaps, Colloq as likely as not, quite:
She is probably the best tennis player in the world at the moment.
Advanced English Dictionary
+adverb used to say that sth is likely to happen or to be true: You're probably right. + It'll probably be OK. + It was the best known and probably the most popular of her songs. + 'Is he going to be there?' 'Probably.' + 'Do we need the car?' 'Probably not.' + As you probably know, I'm going to be changing jobs soon. + (written) The two cases are most probably connected.
Random quote: The weak can never forgive. Forgiveness is the attribute of the strong.: Mohandas Gandhi