• coming before all others in time or order; earliest; 1st

Synonyms: earliest, initial, opening, introductory, original, fundamental, basic, rudimentary, primary, beginning, elemental, underlying, basal, foundation

• foremost in position, rank, or importance

Synonyms: foremost, principal, highest, greatest, paramount, top, topmost, utmost, uppermost, prime, chief, leading, main, major, top, best, prime, premier, superlative

• with a specified part or person in a leading position