functional

UK: ˈfʌŋkʃənl | US: ˈfʌŋkʃənl

Definition
  1. adj. relating to or serving a practical purpose

  2. adj. capable of operating or working effectively

  3. adj. (mathematics) relating to a function or functions

Structure
function <performance>al <adjective suffix>
Etymology

The word "functional" derives from the Latin functio (performance, execution), which stems from fungi (to perform, execute). The suffix -al (from Latin -alis) turns nouns into adjectives, indicating "relating to." Over time, "functional" evolved to describe anything designed for practical use or efficiency, reflecting its roots in action and performance.

Examples
  1. The design is both aesthetic and functional.

  2. The old machine is still fully functional.

  3. She studies functional relationships in mathematics.

  4. The app’s functional layout makes it easy to navigate.

  5. His role in the team is purely functional, not managerial.