Synonyms for Bumpy:

adj.

all (adjective)
jolty, jolting, rough.
lumpy (adjective)
lumpy.
rough (adjective)
lumpy, uneven, jarring, irregular.

n.

prickly, abrasive, textured. outward, nonstop, overseas, overland, transatlantic, return, door-to-door, round-the-world, circuitous. win or lose, checkered, be/hang in the balance, knife edge, have an even chance (of doing something), on the bubble, ups and downs. bumpy (noun)
jolting, jolty, jarring, rough, unsmooth.

Other synonyms:

door-to-door, nonstop, checkered, overland, round-the-world. overseas, circuitous, transatlantic. irregular, knife edge. outward. return. knotty
lumpy.
Other relevant words:
door-to-door, lumpy, textured, return, transatlantic, uneven, checkered, irregular.

Usage examples for bumpy

  1. The ground was extremely bumpy and several times I was almost thrown out of the saddle. – The Fairies and the Christmas Child by Lilian Gask
  2. Usually it is done quite easily, as by your wearing too many garments or too few; but if you are bumpy in awkward places or the only available tree is an odd shape, Peter does some things to you, and after that you fit. – Peter and Wendy by James Matthew Barrie
  3. Not a soul had conceived it likely that Captain Dalton would have risked his fine machine over the bumpy side- tracks that formed short- cuts in various directions, notably one to the ruins which Joyce had often expressed a wish to see. – Banked Fires by E. W. (Ethel Winifred) Savi