FUNDAMENTAL Synonyms: 148 Similar and Opposite Words - Merriam-Webster
https://www.merriam-webster.com/thesaurus/fundamental
WEBSynonyms for FUNDAMENTAL: basic, rudimentary, elementary, introductory, underlying, essential, elemental, basal; Antonyms of FUNDAMENTAL: advanced, complex, sophisticated, extensive, detailed, complicated, higher, intricate.
DA: 61 PA: 48 MOZ Rank: 43