diplomatical vs diplomatic

diplomatical and diplomatic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
diplomatical	No	Yes	No	No
diplomatic	No	Yes	No	No

As adjectives, diplomatical and diplomatic are synonyms defined as:

diplomatical and diplomatic: using or marked by tact in dealing with sensitive matters or people

diplomatical (adjective)	diplomatic (adjective)
using or marked by tact in dealing with sensitive matters or people	using or marked by tact in dealing with sensitive matters or people
	relating to or characteristic of diplomacy