bareback

from WordNet (r) 3.0 (2006)

bareback
    adv 1: without a saddle; "she prefers to ride her horse
           bareback" [syn: {bareback}, {barebacked}]
    adj 1: riding without a saddle; "a bareback rider" [syn:
           {bareback}, {barebacked}]

from The Collaborative International Dictionary of English v.0.48

Bareback \Bare"back`\ (b[^a]r"b[a^]k`), adv.
   On the bare back of a horse, without using a saddle; as, to
   ride bareback.
   [1913 Webster]

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