say it: fa-STID-ee-uhs
fastidious is an adjective meaning "giving careful attention to detail; hard to please; excessively concerned with cleanliness". It carries 2 recorded senses.
giving careful attention to detail; hard to please; excessively concerned with cleanliness
“a fastidious and incisive intellect”
“fastidious about personal cleanliness”
having complicated nutritional requirements; especially growing only in special artificial cultures
“fastidious microorganisms”
“certain highly specialized xerophytes are extremely exacting in their requirements”
microbiology
Definitions, synonyms and semantic relations for fastidious 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.