at one's back's Usage Examples:

This involves the arms hanging down rather than up at one's back, and the pressure is exerted on the back through being held in the hands.

guides, and is the direction which keeps the prevailing wind and rain at one's back, and the evening sun out of one's eyes.

one would be traveling "down [wind]" to the east with a westerly wind at one's back.

their arms tied with rope in Miquit-a-sicu fashion (tied elbows meeting at one's back), the Spanish military method of tying-up prisoners, that was guaranteed.

Synonyms:

saddle; body; trunk; latissimus dorsi; dorsum; thoracic vertebra; lumbar vertebra; small; torso; body part; dorsal vertebra; lat;

Antonyms:

hardness; thinness; large; big; unlimited;