adjective
Indicating position or direction.
(figuratively) Expressing lack of development or advancement.
(often in negative constructions) Reluctant or unwilling to advance or act; shy.
(chess) Of a pawn, further behind than pawns of the same colour on adjacent files and unable to be moved forward safely.
(cricket) On that part of the field behind the batsman's popping crease.
(cricket) Further behind the batsman's popping crease than something else.
(obsolete) Unwilling; averse; reluctant.
(obsolete) Already past or gone; bygone.
adverb
At, near or towards the rear of something.
In a direction opposite to that in which someone or something is facing or normally pointing.
In a direction opposite to the usual direction of movement.
(figuratively) Oppositely to the desired direction of progress, or from a better to a worse state.
In a reversed orientation; back to front.
In a reversed order or sequence.
Toward or into the past.
(obsolete) In the past.
By way of reflection; reflexively.
noun
The state behind or past.
verb
(transitive, dated) To keep back, to delay, to retard.