Fastidious – Excessive attention to detail; very concerned about cleanliness

To remember the definition of the word fastidious, use the following mnemonic:

Fast idiots (fastidious). They crashed their vehicles and were arrested.

There was then a massive clean up operation which was exccesively particular.

There then had to be a massive clean up operation – you have to be exccesively particular.

Examples of fastidious in a sentence (detail)

The devoted fans of the science fiction show were fastidious in terms of plot development.

Despite Marilyn’s high grade, the professor remained fastidious in his assessment of her academic skill.

He was fastidious about his appearance.

Examples of fastidious in a sentence (cleanliness)

Constantly licking themselves, cats are fastidious creatures.

Alvin was fastidious in flossing his teeth, he loved a clean mouth.

The boy was fastidious with his toy chest, each toy had its special place.