Synonyms of insoluble
47 similar words · 4 opposite words
Another word for insoluble is indissoluble. Other synonyms of insoluble are unsolvable, mysterious, inexplicable, obscure and unknowable. The opposite of insoluble is soluble.
Synonyms and similar words for insoluble
adjectiveThat cannot be dissolved.
- indissolubleLasting; indestructible; not possible to dissolve, disintegrate or break up.
- undissolvableNot dissolvable.
adjectiveThat cannot be solved.
- insolvableImpossible to solve; insoluble.
- unsolvableNot solvable.
adjectiveThat cannot be explained.
- inexplicableImpossible to explain; not easily accounted for.
- unexplainableThat doesn't have a known or readily available explanation.
- unexplainedNot explained; of unknown cause or origin.
- mysteriousDifficult to understand.
- abstruseDifficult to comprehend or understand; obscure.
- Chinese
- denseObscure or difficult to understand.
- enigmatic
- fathomless
- bottomless
- Greek
- inapprehensibleThat cannot be apprehended; not apprehensible to or graspable by either body or mind.
- incognizableNot cognizable; incapable of being recognised.
- incomprehensible
- ineffable
- inenubilable formal, literaryInexplicable, mysterious, unclear.
- impenetrableIncomprehensible; fathomless; inscrutable.
- insensibleUnable to be understood; unintelligible.
- inscrutableDifficult or impossible to comprehend, fathom, or interpret.
- nonunderstandableNot understandable.
- obscureDifficult to understand; abstruse.
- tenebrose figurativelyObscure; obtuse; incomprehensible.
- thickDifficult to understand, or poorly articulated.
- undecipherableNot easily deciphered; difficult to read.
- undiscoverable
- unfathomableImpossible to grasp the extent of, or to fully know or understand.
- ungraspable
- unintelligibleNot intelligible; unable to be understood.
- unknowableNot knowable; not able to be known.
- ununderstandableNot understandable; that cannot be understood.
- arcane
- cryptic
- ill-defined
- mysteriosoMysterious.
- mystic
- runish
- sibylline
- systerious
- uncertain
- undefined
- undetermined
- retruse obsolete
- mysterial obsolete
Opposite of insoluble
adjectiveThat cannot be dissolved.
- solubleAble to be dissolved.
- dissolubleWhich can be dissolved or disintegrated.
- dissolvableCapable of being dissolved.
adjectiveThat cannot be solved.
- solvableCapable of being solved.
Meaning of insoluble
- adjective That cannot be dissolved.
- adjective That cannot be solved.
- adjective That cannot be explained.
insoluble in other languages
Questions about synonyms of insoluble
- What is another word for insoluble?
- Insoluble has 47 synonyms on Word.ws, such as indissoluble, unsolvable, mysterious, inexplicable, obscure, unknowable, inscrutable and abstruse.
- What is the opposite of insoluble?
- The opposite of insoluble is soluble. Other antonyms of insoluble are dissolvable, solvable and dissoluble.
- What does insoluble mean?
- Insoluble means that cannot be dissolved.
Source and license
Adapted from Wiktionary: insoluble (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.
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Cite this page: “Synonyms of insoluble.” Word.ws, https://word.ws/synonyms/insoluble. Based on Wiktionary, CC BY-SA 4.0.