Dictionary.com
Thesaurus.com
Synonyms

soluble

American  
[sol-yuh-buhl] / ˈsɒl jə bəl /

adjective

  1. capable of being dissolved or liquefied.

    a soluble powder.

  2. capable of being solved or explained.

    a soluble problem.


noun

  1. something soluble.

soluble British  
/ ˈsɒljʊbəl /

adjective

  1. (of a substance) capable of being dissolved, esp easily dissolved in some solvent, usually water

  2. capable of being solved or answered

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

soluble Scientific  
/ sŏlyə-bəl /
  1. Capable of being dissolved. Salt, for example, is soluble in water.


Other Word Forms

Etymology

Origin of soluble

1350–1400; Middle English < Late Latin solūbilis, equivalent to Latin solū-, variant stem of solvere to loosen, dissolve + -bilis -ble

Explanation

Sugar is soluble. It dissolves easily in water. You can also use the word to describe a problem that can be solved easily. How are the two definitions of soluble related? When you dissolve something in a liquid, the combination is known as a solvent or a solution. All of these "sol-" words descend from the Latin word that means loosen or unfasten. When you dissolve something in water, you loosen the molecules. And if you think of a problem like a knot, to solve it is to loosen it up.

Keep Reading on Vocabulary.com

Vocabulary lists containing soluble

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

One solution has been to develop water soluble adhesives, external.

From BBC Jul. 27, 2026

And some vitamins, like A, D, E and K, are fat soluble so the body stores them for longer, so it might not be necessary to take them on a daily basis.

From BBC Jun. 20, 2026

The researchers also noted that recent studies suggest soluble fiber from legumes and soy can be fermented in the gut to produce short chain fatty acids, compounds that may help blood vessels relax and widen.

From Science Daily May 26, 2026

For example, if your daily goal is 30 grams of fiber, about 20 grams should come from insoluble fiber and 10 grams from soluble fiber.

From Science Daily Mar. 8, 2026

He told me, “Paul and Jim had mobilized the TB tribe to accept drug-resistant TB as a soluble problem,” but victory over MDR was far from assured.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training