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Definitions

in all probability

ADVERB
likely
Synonyms
STRONGEST
presumably
WEAK
assumably doubtless doubtlessly in all likelihood like as not most likely no doubt presumptively prima facie seemingly to all appearances
Antonyms
WEAK
improbably unlikely
ADVERB
presumably
Synonyms
STRONGEST
apparently doubtless probably seemingly supposedly surely
STRONG
presumptively
WEAK
assumably credible doubtlessly hypothetically in all likelihood indubitably it would seem most likely on the face of it theoretically unquestionably
Antonyms
STRONGEST
improbably questionably uncertain unlikely
WEAK
doubtfully
ADVERB
probably
Synonyms
STRONGEST
apparently doubtless no doubt perhaps possibly presumably seemingly
STRONG
believably plausibly
WEAK
as likely as not as the case may be assumably dollars to doughnuts expediently feasibly imaginably in all likelihood like enough maybe most likely one can assume perchance practicably presumptively reasonably to all appearances
Antonyms
STRONGEST
improbably uncertain unlikely

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Though he wrote an op-ed for the Wall Street Journal entitled, “Let’s Hit ‘Pause’ Before Altering Humankind,” Baltimore admitted later that genome-editing would in all probability take place sooner rather than later.

From Los Angeles Times • Sep. 8, 2025

Mr Withey said if the risk of the procedure had been explained to Ms Kerr before she had financially committed to it, she would not "in all probability" have gone through with it.

From BBC • Sep. 13, 2023

“Everybody is going to go through it again, and the outcome in all probability is going to be the same,” said Jim Pasco, the executive director of the National Fraternal Order of Police.

From New York Times • Jun. 8, 2023

Those behind the attempt have never been found — and in all probability, never will be.

From Washington Post • Apr. 11, 2023

Early in her career at Langley, Dorothy Lee was interviewed for the Daily Press, in all probability by Virginia Biggins, the female reporter assigned to the Langley beat.

From "Hidden Figures" by Margot Lee Shetterly