The Collaborative International Dictionary of English v.0.48:
Bristle \Bris"tle\, v. t. [imp. & p. p. Bristled; p. pr. & vb.
1. To erect the bristles of; to cause to stand up, as the
bristles of an angry hog; -- sometimes with up.
Now for the bare-picked bone of majesty
Doth dogged war bristle his angry crest. --Shak.
Boy, bristle thy courage up. --Shak.
2. To fix a bristle to; as, to bristle a thread.
Moby Thesaurus II by Grady Ward, 1.0:
50 Moby Thesaurus words for "bristling":
alive with, barbellate, bristled, bristly, bursting, close,
compact, crammed, crawling, crowded, crowding, dense, firm, full,
glochidiate, hairy, hirsute, hispid, in profusion, jam-packed,
jammed, lavish, overflowing, packed, populous, prodigal, profuse,
proliferating, prolific, rife, serried, setaceous, setose, setous,
solid, strigal, strigate, strigose, stubbled, stubbly, studded,
superabundant, swarming, teeming, thick, thick as hail, thick with,
thick-coming, thronged, thronging