2 collocations for invisible

A shallow, stony, steadfast eye; that looks at neither man nor beast in the face, but at something invisible a yard before him, through you and past you, at a fascination, a ghost of fixed purposes that haunts him, from which neither reason nor pity will turn him.

The words too eager to unriddle, The Poet felt a strange disorder; Transparent birdlime form'd the middle, And chains invisible the border.

2 collocations for  invisible