Spiny
WordNet
adjective
(1) Having or covered with protective barbs or quills or spines or thorns or setae etc.
"A horse with a short bristly mane"
"Bristly shrubs"
"Burred fruits"
"Setaceous whiskers"
(2) Having spines
"The dorsal fin is spinous"
WiktionaryText
Adjective
- covered in spines or thorns
- troublesome; difficult or vexing