kunstlikul
Kunstlikul is a form of the Estonian adjective kunstlik, meaning artificial or man-made. It is the adessive singular form used when the modified noun is in the adessive case. In Estonian, adjectives decline to agree with the noun in number and case, so kunstlikul appears in constructions where the sense is “on (an) artificial …” or “in an artificial way alongside a noun in the adessive.”
In common usage, kunstlikul often appears in phrases that express manner, purpose, or condition. Examples include
For contrast, other inflected forms of kunstlik include kunstliku (genitive singular), kunstlikku (partitive singular), and kunstlikult
Etymology traces kunstlikul to the base adjective kunstlik, formed from kunst (art, craft) with the -lik suffix
See also: kunstlik (dictionary entry), kunstlikult (adverb), artificial and synthetic terminology in Estonian.