spinier
spi-ni-er
adjective
Having more spines or sharp points; more complex or difficult to deal with.
"That rose bush is spinier than the one next to it."
Thesaurus
Synonyms: burry, bristly, barbellate, setaceous, barbed, briery, briary, setose, thorny, prickly, spiny, burred
Antonyms: spineless