Colloidally is an adverb that describes the properties of a colloid, which is a type of substance that is dispersed throughout another substance. Synonyms for colloidally include colloidal, particulate, dispersed, and suspended. Other possible synonyms include tiny, microparticle, nanoparticle, and fine. Colloidally can also be used to describe the behavior of particles in a colloid, such as the way they scatter light or undergo Brownian motion. Other synonyms for this usage include turbid, cloudy, milky, and opaque. In general, synonyms for colloidally emphasize the small size and dispersed nature of the particles involved.