commanding

1. Having command; controlling.
2. Dominating, as by magnitude or position: took a commanding lead at the polls; a commanding view of the ocean.

adjective

1. Exercising authority: authoritative, dominant, lordly, masterful. See over/under, strong/weak.
2. Exercising controlling power or influence: controlling, dominant, dominating, dominative, governing, paramount, preponderant, regnant, reigning, ruling. See over/under.

Definition: superior, authoritative
Antonyms: indecisive, inferior, unassertive, uncontrolling

The adjective has 3 meanings:

Meaning #1: of the highest rank; used of persons
  Synonyms: ranking, top-level, top-ranking

Meaning #2: used of a height or viewpoint
  Synonyms: dominating, overlooking

Meaning #3: not allowing contradiction or refusal
  Synonym: peremptory