"Fastidous" is probably misspelled. Trying fastidious instead Definition of fastidious
fastidious has definitions from the field of microbiology
1
[ adjective ] giving and careful attention to detail; hard to please; excessively concerned with cleanliness

Examples

"a fastidious and incisive intellect" "fastidious about personal cleanliness"

2
[ adjective ] (microbiology) having complicated nutritional requirements; especially growing only in special artificial cultures

Synonyms

exacting

Examples

"fastidious microorganisms" "certain highly specialized xerophytes are extremely exacting in their requirements"

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