obstetrical vs obstetric

obstetrical and obstetric both are adjectives.

Word	Noun	Adjective	Verb	Adverb
obstetrical	No	Yes	No	No
obstetric	No	Yes	No	No

As adjectives, obstetrical and obstetric are synonyms defined as:

obstetrical and obstetric: of or relating to or used in or practicing obstetrics

obstetrical (adjective)	obstetric (adjective)
of or relating to or used in or practicing obstetrics	of or relating to or used in or practicing obstetrics