Relating to or concerned with examination or testing; of or pertaining to the process of examining.
From examination + -al suffix. The -al suffix converts nouns into adjectives describing relationship or pertinence.
The -al suffix is incredibly common for making adjectives (educational, national, personal), but what's cool is that it often creates adjectives that feel more formal or technical than the original noun—'examinational' sounds like serious business!
Complete word intelligence in one call. Free tier — 50 lookups/day.