major

Definitions

Greater in size, extent, importance, or seriousness than others of the same kind.

Of full legal age.

A student's principal subject or course of study in a university or college.

Examples

Climate change is a major concern for scientists around the world.

She decided to major in biology during her second year of university.

The construction project caused a major delay in traffic this morning.

Synonyms

significant important main primary essential crucial key

Antonyms

minor insignificant trivial secondary unimportant negligible small