- 1being careful that every detail of something is correct synonym meticulous Everything was planned in fastidious detail. He was fastidious in his preparation for the big day.
- 2(sometimes disapproving) not liking things to be dirty or messy She wasn't very fastidious about personal hygiene.
adverb
noun [uncountable]See fastidious in the Oxford Advanced Learner's Dictionary
Check pronunciation: fastidious