What does detainment mean?
Detainment is a formal noun describing the act of holding a person in custody or otherwise preventing them from leaving, whether by police, immigration authorities, customs officers, or another body with legal power. It can also, less commonly, refer more broadly to any delay that keeps a person or thing from moving on. The word carries a serious, often adverse connotation: it typically appears in reports of arrests, interrogations at borders, or disputes over whether someone's hold was lawful or wrongful. Derived from the verb "detain" — ultimately from Latin tenēre, meaning "to hold" — it belongs to the same family as "detention," which is by far the more common term in ordinary speech and writing. Writers usually reach for "detainment" for stylistic variation or in particular legal contexts. Common pairings include "unlawful detainment" and "wrongful detainment." Knowing the word is useful chiefly for reading legal and news prose with precision.
The act of keeping a person in custody or under restraint, or the state of being so held, especially by a legally empowered authority.
"The journalist's six-hour detainment at the airport drew international criticism."
Often modified by adjectives such as "unlawful" or "wrongful" in legal and journalistic writing.
The action of delaying or holding back someone or something from proceeding.
"The goods were subject to detainment at the port until the paperwork was corrected."
This broader sense is considerably rarer than the custody sense.
Rarely pluralized; used only when referring to multiple distinct instances of detainment, typically in legal or journalistic reporting.
"The lawsuit cited numerous detainments carried out without proper warrants."
Though "detention" dominates everyday speech, "detainment" is its older sibling — both trace back to Latin tenēre, "to hold," making a detainment literally an act of holding someone fast.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of detainment
Detainment derives from the verb "detain," which entered English from Old French "detenir" in the late Middle Ages, itself from Latin "detinēre," meaning "to hold off, keep back, or restrain" — a compound of "de-" and "tenēre," "to hold." The noun form arose in English as a straightforward derivation on the verb, parallel to "detention," which came via the same Latin root. Cognates sharing the tenēre root include "retain," "contain," and "tenant," all preserving the core sense of holding.
Related word forms
How detainment is actually used
Formal to neutral register, found mainly in legal, journalistic, and official contexts. "Detention" is markedly more common in everyday English and is generally preferred in most writing; "detainment" tends to appear when writers want variety or in fixed legal phrasing. Both British and American English accept it.
Easily confused with detainment
"Detention" is the standard, far more common term for holding someone in custody, while "detainment" is a less frequent variant meaning essentially the same thing.