Satisfactory; meeting an expected standard.
Examples:
- She didn't feel up to par today so she stayed home.
- I'm sure he'll come up to scratch when the time comes.
Origin: From various sports: 'par' from golf, 'scratch' and 'mark' from boxing; 'snuff' variant from early 1800s
Synonyms: up to scratch, up to snuff, up to speed, up to the mark