1. In a harmfully insidious manner
   "these drugs act insidiously"
   - perniciously

See also: insidious

• deke
• Dekker
• dekko
• Del Rio
• Delacroix
• Delairea
• Delairea odorata
• delamination
• delate
• delation
• delator
• delavirdine
• Delaware
• Delaware Bay
• Delaware Memorial Bridge
• Delaware River
• Delawarean
• Delawarian
• delay
• delay line
• delayed
• delayed action
• delayed allergy
• delayer
• Delbruck