Nothing is quite as beautiful and poetic as the German, 'Backpfeifengesicht', meaning sort of "A face that wants to be slapped".
A space or state of warmth, friendliness, and good cheer. Other qualities include coziness, peace of mind, belonging, well being, and social acceptance. The term is most commonly associated with the tenor of a German beer garden.
Now. Use it in a sentence.
(or something... ;) )
https://www.youtube.com/watch?v=v_EWWyJfgPc
No idea what the song is in English, though :)
Edit: got it, "Bare Necessities": https://www.youtube.com/watch?v=9ogQ0uge06o
A 'famous' Dutch-specific word is 'gezellig' or 'gezelligheid'. Its more specific than 'gemütlichkeit', and not entirely the same. In fact, we have another word, 'gemoedelijkheid' which is more similar in meaning, but we probably use it differently than germans because we also have 'gezelligheid'.
Another difficult-to-translate word I really like is 'saudade' (Portuguese): "a feeling of longing, melancholy, or nostalgia that is supposedly characteristic of the Portuguese or Brazilian temperament." (according to google).
Language is fascinating, and I especially like words for feelings/emotions that have no direct translations.