First and Fundamental

First adjective - Coming before all others in time or order.

Fundamental is a synonym for first in elementary topic. In some cases you can use "Fundamental" instead an adjective "First", when it comes to topics like earliest in order.

Nearby Word: firstly

Fundamental adjective - Of or relating to the simplest facts or theories of a subject.

First is a synonym for fundamental in primary topic. Sometimes you can use "First" instead an adjective "Fundamental", if it concerns topics such as basic, central.

Nearby Words: fundamentally, fundamentalist, fundament, fundamentalism