Being "meticulous" means being very careful to do things the right way. It means paying attention to details. For example, a meticulous student might take lots of notes in class and then organize them at home.

People are "meticulous" about things like:

• their work
• the cleanliness of their home
• their homework
• preparing for things

"Meticulous" is a positive word. A negative word to describe someone who pays attention to details is "fussy":

She can be rather fussy about money.