indefinable
adjective
1. not capable of being precisely or readily described; not easily put into words
- an indefinable feeling of terror
- an abstract concept that seems indefinable
Similar word(s): undefined, vague, undefinable
2. defying expression or description
- indefinable yearnings
Similar word(s): inexpressible, unexpressible, indescribable, ineffable, unspeakable, untellable, unutterable
noun
1. Anything that cannot be defined.