Fundamentally

/ˌfʌndəˈmɛntəli/

Meaning & Definition

adverb
In a basic and important way; at the core or foundation of something.
The two proposals are fundamentally different in their approaches to solving the issue.
Essentially; by nature.
She is fundamentally a kind and generous person.
In terms of the most important or central aspect.
The theory is fundamentally sound, despite some criticisms.

Etymology

From the late Latin 'fundamentalis', from 'fundamentum' meaning 'foundation'.

Common Phrases and Expressions

fundamentally flawed
Inherently defective or lacking.
fundamentally different
At the core, dissimilar.
fundamentally sound
Fundamentally stable or reliable.

Related Words

fundamental
Serving as a foundation; essential.
foundation
The lowest load-bearing part of a building.
basis
The underlying support or foundation for an idea, argument, or process.

Slang Meanings

At the core
The idea is, at the core, sound.
Bottom line
The bottom line is that we need funding.