1
spear-like(adjective, sharp)
1
spicular(adjective, sharpness)
1
spinose
1
splenetic
1
splintery
1
steep
1
stinging
1
strenuous
1
thorniest
1
tipped
1
toilsome
1
tough
1
troublesome(adjective, tricky, complicated, thorny, spiky)
1
unbated
1
unblunted
1
uphill
1
whetted
1
wicked
0
acrid
0
aculeated
11 years ago|6.7k views|share |citing 
APASmart Define. (2015). spiny thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/spiny/thesaurus/synonyms
ChicagoSmart Define. 2015. "spiny thesaurus" https://smartdefine.org/spiny/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, spiny thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/spiny/thesaurus/synonyms>.
MLASmart Define. "spiny thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/spiny/thesaurus/synonyms>