dominating vs peremptory

dominating and peremptory both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dominating	No	Yes	No	No
peremptory	No	Yes	No	No

As adjectives, dominating and peremptory are synonyms defined as:

dominating and peremptory: offensively self-assured or given to exercising usually unwarranted power

Other synonyms of dominating include autocratic, bossy, high-and-mighty, magisterial.

dominating (adjective)	peremptory (adjective)
most powerful or important or influential	putting an end to all debate or action
offensively self-assured or given to exercising usually unwarranted power	offensively self-assured or given to exercising usually unwarranted power
used of a height or viewpoint	not allowing contradiction or refusal