fundamental
adjective
1. serving as an essential component
- an example that was fundamental to the argument
- computers are fundamental to modern industrial structure
Similar word(s): important, cardinal, central, key, primal
2. being or involving basic facts or principles
- the fundamental laws of the universe
- a fundamental incompatibility between them
Similar word(s): basic, rudimentary, underlying
3. related the most important part of something; the essence.
- the fundamental revolution in human values that has occurred
- the book underwent fundamental changes
- committed the fundamental error of confusing spending with extravagance
Similar word(s): important, significant, profound
Sentences with fundamental as an adjective:
- a fundamental truth;
- A need for belonging seems fundamental to humans.