- Solastalgia, a new type of unease My interest in words that sum up melancholia or human yearning (in a way that standard English just can’t) continues. A Twitter friend (Dr Daz) sent me this read about “solastalgia”, a word invented by (retired) Murdoch University professor of sustainability and environmental philosopher Glenn Albrecht. Solastalgia describes “the homesickness you have when you are still more