Modifies a noun

• something: Happy to meet a non-smoker with that indefinable something!

• sense: It felt safe, and there was an indefinable sense of pride about the place.

• way: What does he need to, in some indefinable way, bring within himself?

• feeling: There is in the collective psyche an underlying, indefinable feeling of having failed ourselves.

• ingredient: It's missing that magical something, that indefinable secret ingredient.

• air: She is perfectly coiffed with eyes elegantly smudged with kohl, shimmering lips, fabulously tailored suits and an indefinable air of dignity.

Modifying Another Word

• almost: This varied mix gives this friendly young band an almost indefinable sound.

• often: It is a challenging attempt to define what is often indefinable.

• ultimately: Although in most traditions the sacred itself is ultimately indefinable, it is not amorphous.

• yet: Kether is described as " The Point: positive yet indefinable " .