Basic
Fundamental
Synonyms Fundamental, primary, cardinal, elementary, root, pivotal, key, salient, essential, bare-bones, cut down, necessary, foundational, underlying, rudimentary, principal, chief, elemental, central, critical, focal, staple, quintessential, stripped down, vital, indispensable, intrinsic, and ingrained.
Lowest
Synonyms Lowest, starting, undermost, plain, unsophisticated, adequate, undecorated, without frills, sparse, severe, limited, rudimentary, sketchy, modest, unpretentious, unfussy, homespun, rough and ready, crude, restrained, bog-standard, bottom, ground, without commission, simple, straightforward, unadorned, unornamented, spartan, stark, austere, meagre, patchy, minimal, ordinary, unostentatious, homely, rough, rough-hewn, makeshift, and muted.
Fundamentals
Example Sentences
He understands the basic principles well.
This course covers basic concepts thoroughly.
Basic needs must be fulfilled.
They learned basic skills in school.