Acicular and Cuspate

Acicular adjective - Narrow and long and pointed; as pine leaves.

Cuspate and acicular are semantically related in sharp topic. In some cases you can use "Cuspate" instead an adjective "Acicular".

Cuspate adjective - Having cusps or points.

Acicular and cuspate are semantically related in sharp topic. You can use "Acicular" instead an adjective "Cuspate".