dominant
dom-i-nant
adjective
Most important, powerful, or noticeable, having control or influence over others.
"The company holds a dominant position in the market."
Thesaurus
Synonyms: preponderating, ascendant, superior, ascendent, dominating, predominate, supreme, overriding, preponderant, paramount, governing, possessive
Antonyms: low-level, recessive, subordinate