Synonyms of unassailable

unassailable

adjective

ˌən-ə-ˈsā-lə-bəl 

as in sacred

not to be violated, criticized, or tampered with

one of the unassailable beliefs of that political party

Synonyms & Similar Words

• sacred
• holy
• inviolable
• pure
• untouchable
• sacrosanct
• protected
• privileged
• hallowed
• secure
• immune
• inviolate
• exempt
• shielded

Antonyms & Near Antonyms

• irreverent
• blasphemous
• profane
• sacrilegious

Example Sentences

Recent Examples of unassailable

Northern, post-industrial areas such as Makerfield were viewed for years as safe and unassailable Labour seats. — Katie Marie Davies, Christian Science Monitor, 18 June 2026

There could then be a leadership contest, or a coronation, depending on whether other potential candidates think Burnham has an unassailable lead. — ABC News, 18 June 2026

But there is something noble in Gill’s version, in particular the idea that the truth is unassailable and inarguable and therefore the only place from which a real conversation can sprout. — Stephen Deusner, SPIN, 15 June 2026

Regulators blocked it, fearing the deal would create an unassailable monopoly. — Tiisetso Motsoeneng, semafor.com, 8 June 2026