pyramidal

/pɪˈræmɪdəl/
adjective
  1. Shaped like a pyramid; having a broad base that narrows to a point at the top.
    • She arranged the fruit in a pyramidal stack on the platter.
    • The tree has a pyramidal shape, making it popular for landscaping.
    • The mountain had a pyramidal peak covered in snow.
  2. Relating to or resembling a pyramid in structure or organization.
    • The social system in that ancient kingdom was strictly pyramidal.
    • In a pyramidal structure, each level has fewer people than the one below.
    • The company had a pyramidal hierarchy with the CEO at the top.
Antonyms
What does "pyramidal" mean? | whatsthatwordmean | whatsthatwordmean