Definitions

1. verb

to treat someone with contempt, cruelty, or injustice

“The politician’s opponents sought to dastardize him by revealing his past mistakes.”

2. verb

to commit a dastardly act; to act with cowardly cunning

“The thief dastardized his way into the mansion by sneaking in through an unguarded side door.”

3. verb

to reduce something to a lower condition or state

“The economic policies dastardized the local community, causing widespread poverty and unemployment.”