peremptory vs dominating

peremptory and dominating both are adjectives.

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

As adjectives, peremptory and dominating are synonyms defined as:

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

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

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