Foundational

adj

adj ·4 syllables ·Uncommon ·Advanced level

Definitions

Adjective
  1. 1
    Of or relating to a foundation or foundations.
  2. 2
    Fundamental or underlying.

Example

More examples

"Parker Solar Probe will set its sights on the corona to solve long-standing, foundational mysteries of our Sun."

Etymology

From foundation + -al.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.