: likely to happen or to be true but not certain
a probable result/explanation
His account of what happened is more probable than not. [=his account of what happened is probably true]
It is probable that life exists outside of our planet.
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“Probable.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/probable. Accessed 17 Apr. 2026.
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