presumably
6 synonyms for presumably, grouped by meaning and by how common each one is.
Adv — Used to say that something is probably true, based on the available evidence, even without direct confirmation.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
How to use presumably
The word patterns that sound natural to a native speaker.
presumably because
presumably due to
Etymology
Formed from presume plus -ably, or from presumable plus -ly.
Full origin of presumably →Frequently asked questions
What does “presumably” mean?
The word “presumably” means used to say that something is probably true, based on the available evidence, even without direct confirmation. In plain terms, a hedging word for "I assume, though I'm not 100% certain.".
How do you pronounce “presumably”?
“Presumably” is pronounced prih-ZYOO-muhb-lee (/pɹɪˈzuːməbli/ in IPA).
How do you use “presumably” in a sentence?
Here is “presumably” used in a sentence: “The lights are off, so presumably no one is home.”
What part of speech is “presumably”?
“Presumably” is an adverb.
Is “presumably” a common word?
“Presumably” is a fairly common word in modern English, usually learned at around the B2 level.
What is the difference between presumably and probably?
Presumably signals that the speaker is inferring something from the available evidence without direct confirmation: 'the lights are off, so presumably no one is home.' Probably simply states that something is likely, without implying any reasoning process. Presumably comments on an assumption; probably estimates a likelihood.
What is the difference between presumably and supposedly?
Presumably presents something as a reasonable assumption the speaker is prepared to accept. Supposedly reports what others claim while often hinting at doubt, as in 'the pill supposedly works overnight.' In short, presumably leans toward belief and supposedly leans toward skepticism.
Where does presumably go in a sentence?
Presumably is a sentence adverb, so it most often opens the sentence followed by a comma: 'Presumably, the train was delayed.' It can also sit before the main verb ('they have presumably left') or after a linking verb, wherever it clearly marks the whole statement as an assumption.
Is presumably formal or informal?
Presumably is neutral and works in both conversation and formal writing; it is especially common in journalism and academic prose when a writer flags an inference. Informal speech often swaps in 'I guess' or 'I assume' instead.
