substantiate
12 synonyms and 0 antonyms for substantiate, grouped by meaning and by how common each one is.
Verb — To back up a claim with evidence or proof.
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 substantiate
The word patterns that sound natural to a native speaker.
Etymology
From Medieval Latin substantiatus, "given substance," first used in English in 1657.
Full origin of substantiate →Frequently asked questions
What does “substantiate” mean?
The word “substantiate” means to back up a claim with evidence or proof. In plain terms, to prove something is true by providing solid evidence.
How do you pronounce “substantiate”?
“Substantiate” is pronounced suhb-STAN-shee-ayt (/səbˈstænʃiˌeɪt/ in IPA).
How do you use “substantiate” in a sentence?
Here is “substantiate” used in a sentence: “The journalist could not substantiate the rumor, so she dropped the story.”
What part of speech is “substantiate”?
“Substantiate” is a verb.
Where does the word “substantiate” come from?
The word “substantiate” dates back to around 1657 and comes from Medieval Latin. From Medieval Latin substantiatus, "given substance," first used in English in 1657.