Definitions

1. verb

to spoil or sully something, especially by adding an impure or inferior element

“The new development spoiled the slour of the otherwise pristine landscape.”

2. verb

to sully or impair the reputation of something

“The scandal sloured the company’s good name and led to financial losses.”

3. noun

a spoiled or sullied state or condition

“The slour on the company’s reputation was a result of years of poor management.”