despotic vs despotical

despotic and despotical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
despotic	No	Yes	No	No
despotical	No	Yes	No	No

As adjectives, despotic and despotical are synonyms defined as:

despotic and despotical: belonging to or having the characteristics of a despot

despotic (adjective)	despotical (adjective)
belonging to or having the characteristics of a despot	belonging to or having the characteristics of a despot
characteristic of an absolute ruler or absolute rule; having absolute sovereignty
ruled by or characteristic of a despot