Fastidious (adjective)

1. Very attentive to detail and meticulous in one's work or habits.
2. Difficult to please or satisfy.

Origin:

From latin fastidiosus, meaning 'displeased' or 'disgusted'.

Examples:

1. The fastidious chef was known for his precise measurements and attention to detail in his cooking.
2. The fastidious collector only accepted the finest pieces for his collection.
3. The fastidious worker was praised for his neat and tidy workmanship.
4. The fastidious student was often frustrated by her perfectionist tendencies.
5. The fastidious critic was never satisfied with any performance, no matter how good it was.