Adverbs for Pestiferous

disgustingly; capriciously; naggingly; mischievously; trickily; annoyingly; oddly; wilfully; intentionally; purposely; cantankerously; deliberately; wantonly; persistently; continually; unbearably; meanly; maliciously; venomously; woefully; wretchedly; miserably; curiously; strangely; intolerably.