Synonyms of undoable

undoable

adjective

ˌən-ˈdü-ə-bəl 

as in impossible

incapable of being solved or accomplished

a combat mission of that type is not only undoable, it's foolish

Synonyms & Similar Words

• impossible
• hopeless
• unlikely
• problematic
• impractical
• futile
• unattainable
• insoluble
• unrealizable
• unsolvable
• insuperable
• insolvable
• useless
• incredible
• absurd
• unworkable
• infeasible
• impracticable
• unfeasible
• improbable
• unusable
• questionable
• unthinkable
• inconceivable
• dubious
• unimaginable
• implausible
• unbelievable
• ridiculous
• debatable
• disputable
• suspicious
• suspect
• doubtful
• shaky
• fishy
• far-fetched
• outlandish
• doubtable
• preposterous
• shady
• fantastic

Antonyms & Near Antonyms

• possible
• feasible
• achievable
• workable
• soluble
• attainable
• practical
• useful
• reasonable
• applicable
• functional
• doable
• usable
• practicable
• realizable
• working
• probable
• serviceable
• likely
• resolvable
• acceptable
• conceivable
• plausible
• credible
• believable

Example Sentences

Recent Examples of undoable

Some, viewing a short leave as undoable, drop out of the workforce altogether. — Michael Cuglietta, The Orlando Sentinel, 28 May 2026

American leaders’ personal experiences of winning the war gave them the confidence to think the unthinkable and to do what previous generations had dismissed as undoable by constructing an international order that could bring peace. — Graham Allison, Foreign Affairs, 24 Nov. 2025

Any new support or system should be as unobtrusive and undoable as possible. — Srishti Gupta, Interesting Engineering, 23 Nov. 2025

Wandering around the Starfactory, however, this ambition no longer seems undoable. — Eric Berger, ArsTechnica, 21 Aug. 2025

Watch out for ‘undoable’ retirement account missteps Federal workers who find themselves unexpectedly out of work may be tempted to take money from their retirement plans. — Annie Nova,lorie Konish,greg Iacurci,ana Teresa Solá, CNBC, 21 Feb. 2025

Furthermore, the committee’s appointees, Musk especially, are known for doing the undoable. — Steve Booren, The Denver Post, 19 Jan. 2025