unmixable
adjective
un·mix·able ˌən-ˈmik-sə-bəl 
: unable to be mixed : not mixable : incompatible
unmixable metals
as unmixable as oil and water
Word History
First Known Use
1673, in the meaning defined above
- i have to warn you
- I hear what you're saying
- I iron
- i kid you not
- I knew it
- i know
- I know (it)
- i know it
- I know what you mean
- I like that!
- i longa
- I mean
- I must love you and leave you
- i promise you
- I rail
- I say
- i should think
- I should/would think
- I shouldn't wonder
- I spy
- I swear
- I tell a lie
- I think not
- I think so
- i told you