Origin: Latin suffix -ous
Fastidious has 3 different meanings across 1 category:
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"
Excessively particular, demanding, or fussy about details, especially about tidiness and cleanliness.