insoluble
/ɪnˈsɒljʊbl/adjective
1
- impossible to solve无法解决的：
the problem is not insoluble.
这一问题不是不能解决。
2
- (of a substance) incapable of being dissolved（物质）不能溶解的：
once dry, the paints become insoluble in water.
这些颜料一旦干了就不溶于水了。
派生词
insolubility
nouninsolubilize
（亦作-ise）verbinsolubly
adverb词源
late Middle English: from Old French, or from Latin insolubilis, from in- 'not' + solubilis （see SOLUBLE）.