bacteria
Evitable is another 8 lettered word
The 8-letter word for the world's smallest cells is "microbes." Microbes include a variety of microscopic organisms, such as bacteria and archaea, which are often single-celled and can only be seen under a microscope. They play essential roles in various ecosystems, including decomposition and nutrient cycling.
to simplify.
disloyal
renowned, esteemed
iniquity, disgrace
deviltry
vengeful, wounding
Humorous.
ellipse
reunions, congress, assembly, conclave
summary