1. relating to or involved in the process of forming or developing something
Usage: commonly used in educational, geological, and developmental contexts
2. of or relating to a geological formation or rock layer
Usage: geology and earth science term

Examples

• The formational years of childhood are critical for language development.
• Early experiences play a formational role in shaping personality.
• Geologists studied the formational characteristics of the sandstone deposits.
• The formational process of the mountain range took millions of years.
• Teachers recognize the formational importance of reading skills in elementary school.
• The formational stages of the company determined its future direction.