Covered in spines, thorns, or sharp prickles

• Prickly to the touch

cubierto de espinas o pinchos

• espinoso al tacto

Difficult, tricky, or problematic to deal with

• Delicate or controversial

difícil o espinoso

• delicado o polémico

Resembling a spine in shape

• Slender and pointed

semejante a una espina en forma

• delgado y puntiagudo

Archaic noun: a small grove or thicket

• Archaic form of "spinney"

arcaico: bosquecillo o soto

• forma arcaica de «spinney»