say it: SLOH-uhst
slowest is an adverb meaning "most slowly". It is pronounced /ˈsloʊəst/ — SLOH-uhst. It carries one recorded sense.
most slowly
Definitions, synonyms and semantic relations for slowest come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.