tunteessa
Tunteessa is the inessive singular form of tunne, a Finnish noun meaning feeling, sense, or emotion. In Finnish grammar, the inessive case (ending -ssa/-ssä) marks location inside something, and tunteessa is used metaphorically to indicate being inside a particular feeling or mood.
The term is commonly used in everyday speech to describe a person’s emotional state or the atmosphere
The noun tunne has related forms: tunteet (plural, “feelings”), and the verb tuntea (“to feel”). The inessive
Etymology traces tunne to a Finnic root related to sensation and perception; tunteessa is the standard grammatical