fundamentally

US /ˌfʌn.dəˈmen.t̬əl.i/
UK /ˌfʌn.dəˈmen.t̬əl.i/
"fundamentally" picture
1.

in a basic and important way

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The two approaches are fundamentally different.
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His argument is fundamentally flawed.
:
basicallyessentiallyprimarilyradicallyinherently
:
fundamental