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Undissolvable vs. Indissolvable: What's the Difference?

By Harlon Moss & Aimie Carlson || Updated on May 22, 2024
Undissolvable means something that cannot be dissolved in a liquid, while indissolvable means something that cannot be broken down or undone.

Key Differences

Undissolvable refers to a substance's inability to dissolve in a solvent. This term is often used in scientific contexts, particularly in chemistry, to describe materials that remain solid when mixed with liquids. Indissolvable, on the other hand, describes something that cannot be broken down or undone. This term is more abstract and can apply to both physical and non-physical contexts. In literature or philosophy, it might refer to an indissolvable bond or agreement, implying it is unbreakable or permanent.
Undissolvable focuses specifically on the interaction between substances and liquids, highlighting a physical property of materials. This term is straightforward and primarily used in practical, tangible scenarios. Indissolvable, whereas, extends beyond physical properties to include conceptual and relational contexts. It often conveys a sense of permanence or unbreakability in various situations, from emotional bonds to contractual agreements.
While both terms imply a form of resistance to change, undissolvable is limited to chemical and physical contexts. Indissolvable encompasses a broader range of scenarios, including metaphorical and literal uses, making it a more versatile term.

Comparison Chart


Cannot be dissolved in a liquid
Cannot be broken down or undone

Usage Context

Primarily scientific, especially in chemistry
Abstract, including physical and non-physical

Example Context

Plastic in water
Marriage vows or legal contracts


Interaction with liquids
Unbreakability or permanence


Limited to physical properties
Broad, including metaphorical uses

Undissolvable and Indissolvable Definitions


Not able to integrate into a liquid solution.
Wax is undissolvable in water.


Not able to be dissolved or separated.
The union was considered indissolvable.


Not able to be dissolved or melted.
Some metals are undissolvable in acid.


Permanently binding or enduring.
The contract is indissolvable.


Chemically resistant to dissolution.
Diamond is undissolvable in all known solvents.


Incapable of being broken down or undone.
Their friendship was indissolvable.


Incapable of being dissolved in a liquid.
Sand is undissolvable in water.


Unbreakable by any means.
The oath they took was indissolvable.


Remaining solid when mixed with a solvent.
Plastic is undissolvable in most solvents.


Remaining intact and unaltered.
The indissolvable nature of the agreement was clear.


Not dissolvable


Not dissolvable; incapable of being dissolved or separated.


Not dissolvable; incapable of being dissolved or separated; incapable of separation; perpetually firm and binding; indissoluble; as, an indissolvable bond of union.


Can something be both undissolvable and indissolvable?

Yes, if it cannot be dissolved in a liquid and cannot be broken down or undone.

Can undissolvable be used metaphorically?

Rarely, it's mostly literal.

What's an example of an undissolvable material?

Plastic in water is a common example.

What does undissolvable mean?

Undissolvable means a substance cannot be dissolved in a liquid.

Is undissolvable used only in scientific contexts?

Primarily, yes, especially in chemistry.

Can indissolvable describe emotional bonds?

Yes, it can describe emotional or relational bonds.

What is the root word for undissolvable?

The root word is also "dissolve," with "un-" as a prefix.

Do undissolvable and indissolvable have the same prefix?

No, undissolvable uses "un-" while indissolvable uses "in-."

Can indissolvable be used in legal contexts?

Yes, often to describe binding agreements.

Can indissolvable be used in philosophical contexts?

Yes, to describe unbreakable ideas or concepts.

Is there a synonym for indissolvable?

Unbreakable or permanent can be synonyms.

What's an example of an indissolvable concept?

Marriage vows are often considered indissolvable.

Which term is broader in usage?

Indissolvable is broader and more versatile.

Does indissolvable imply permanence?

Yes, in a broader sense including physical and abstract.

Does undissolvable imply permanence?

Only in terms of not dissolving in liquid.

Which term is more likely to be used in everyday conversation?

Indissolvable, especially in a metaphorical sense.

Is there a synonym for undissolvable?

Insoluble is a common synonym.

Can a substance be indissolvable but not undissolvable?

Yes, if it can be dissolved but not undone or broken.

Is undissolvable more commonly used than indissolvable?

They are used in different contexts, so frequency varies.

What is the root word for indissolvable?

The root word is "dissolve," with "in-" as a prefix.
About Author
Written by
Harlon Moss
Harlon is a seasoned quality moderator and accomplished content writer for Difference Wiki. An alumnus of the prestigious University of California, he earned his degree in Computer Science. Leveraging his academic background, Harlon brings a meticulous and informed perspective to his work, ensuring content accuracy and excellence.
Co-written by
Aimie Carlson
Aimie Carlson, holding a master's degree in English literature, is a fervent English language enthusiast. She lends her writing talents to Difference Wiki, a prominent website that specializes in comparisons, offering readers insightful analyses that both captivate and inform.

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