dastardly
Word family noundastardlinessdastarddastardnessadjectivedastardly
dast·ard·ly /ˈdæstədli $ -ərd-/ adjectiveadj old-fashioned BAD BEHAVIOUR OR ACTIONSvery cruel or evil 残酷的;邪恶的 tales of pirates and their dastardly deeds 有关海盗及其暴行的故事
Origin dastardly (1500-1600) dastard “someone without courage, someone evil” ((15-20 centuries)), perhaps from Old Norse dæstr