Ekkara

Ekkara is a Finnish word with no direct equivalent in English. It refers to a noticeable or glaring absence; a void or emptiness created by something that is missing. It's more than just something being gone; it implies that the missing thing leaves a significant impact on the situation, making its absence conspicuous and often negative.

The feeling associated with ekkara can range from mild annoyance to profound grief, depending on the context and the importance of the missing element. It can describe the missing ingredient in a recipe, the missing person at a gathering, the missing piece of information needed to solve a problem, or the missing aspect of one's life that leads to a sense of incompleteness.

The term often carries a connotation of something essential being absent, something that fundamentally changes the character or quality of what remains. While "absence" or "void" come close, they lack the specific nuance of a felt need or a glaring lack present in ekkara.