deleterious /del-i-tēˈri-əs/

1. Harmful or destructive
2. Poisonous

deletēˈriously adverb

• self-affrighted
• self-aggrandisement
• self-aggrandising
• self-aggrandizement
• self-aggrandizing
• self-analysis
• self-annealing
• self-annihilation
• self-anointed
• self-applause
• self-appointed
• self-appreciation
• spelaeological
• spelaeologies
• spelaeologist
• spelaeologists
• spelaeology
• spelaeothem
• spelaeothems
• speld
• spelded
• spelder
• speldered
• speldering
• spelders