Something that cannot be obtained, regardless of how much force or persuasion is used.

(idiomatic) To do something difficult, frustrating, or pointless.

(music) a minor key with the notes A♯, B♯, C♯, D♯, E♯, F♯, G♯

(music) a minor key with the notes A♭, B♭, C♭, D♭, E♭, F♭, and G♭

(idiomatic) of high value.

(informal) Indicates that the speaker is male.

Indicates that the speaker is female.

(archaic) For certain.

(archaic, simile) Very odious; hateful.

(rare) To carry out a simple task in an overcomplicated manner.