The state or quality of being fundamental.

(usually in the plural) A leading or primary principle, rule, law, or article, which serves as the groundwork of a system; an essential part / (physics) The lowest frequency of a periodic waveform.

(religion) The tendency to reduce a religion to its most fundamental tenets, based on strict interpretation of core texts. / (by extension) A rigid conformity to any set of basic tenets.

plural of fundamentalism

relating to the most important parts of something

The state or condition of being fundamental; essential importance.

plural of fundamental

(finance) The fundamental analysis data.

In a fundamental or basic sense; reaching the very core of the matter.

plural of fundament