niðursnúin

Niðursnúin is an Icelandic word that translates to "reversed," "inverted," or "upside down" in English. It is a feminine adjective, with its masculine form being niðursneiddur and neuter form being niðursneitt. The plural forms are niðursneiddar (feminine), niðursneiddir (masculine), and niðursneidd (neuter).

The word is commonly used in everyday Icelandic to describe a physical object that has been turned upside down or is in a state of inversion. For example, one might say "fatlaðist sokkurinn niðursnúinn" which means "the sock got turned inside out." It can also be used figuratively to describe a situation that has taken an unexpected or opposite turn, often in a negative sense. For instance, "ástandið varð niðursnúið" could mean "the situation turned for the worse."

In a more technical context, particularly in mathematics or physics, niðursnúinn can refer to a reversed orientation or direction. For example, a vector might be described as niðursnúinn if its direction has been flipped. The concept of inversion is fundamental in various scientific fields, and this Icelandic term serves to describe such states. The etymology of the word suggests a combination of "niður" (down) and "snúinn" (turned), clearly indicating the meaning of being turned downwards or in an opposite direction.