Akademik

probably
adverb
1. with considerable certainty; without much doubt (Freq. 112)
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He is probably out of the country

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in all likelihood we are headed for war

Syn: ↑likely, ↑in all likelihood, ↑in all probability, ↑belike
Derived from adjective: ↑probable
2. easy to believe on the basis of available evidence
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he talked plausibly before the committee

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he will probably win the election

Syn: ↑credibly, ↑believably, ↑plausibly
Ant: ↑incredibly (for: ↑credibly)
Derived from adjective: ↑probable, ↑plausible (for: ↑plausibly), ↑believable (for: ↑believably), ↑credible (for: ↑credibly)

Useful english dictionary. 2012.