Definition

Adverb: With a very high degree of likelihood; almost certainly.

Usage

This phrase is used to express that something is very likely to happen or be true. It is a formal and emphatic way to say "probably" or "almost certainly."

Examples

• The meeting will, in all probability, be postponed until next week.
• In all probability, the experiment will yield the expected results.
• If you don't prepare, you will in all probability fail the exam.

Advanced Usage

• The phrase is often used to make a strong, reasoned prediction based on available evidence or logical deduction.
• It can be placed at the beginning of a sentence, before the main verb, or at the end for emphasis.

Variants and Related Words

• In all likelihood: A direct synonym with identical meaning and usage.
  • In all likelihood, the train is delayed.
• Most probably: A less formal variant.
• Almost certainly: A more direct synonym emphasizing near certainty.

Synonyms

• Probably
• Almost certainly
• Most likely
• In all likelihood
• As likely as not

Antonyms

• Improbably
• Unlikely
• Doubtfully

Related Phrases

• In all probability functions as a fixed adverbial phrase. It does not have constituent phrasal verbs.

Adverb

1. with considerable certainty; without much doubt
   • He is probably out of the country
   • in all likelihood we are headed for war