deleterious /del-i-tēˈri-əs/

1. Harmful or destructive
2. Poisonous

deletēˈriously adverb

• blunderingly
• blunderings
• blunders
• blunge
• blunged
• blunger
• blungers
• blunges
• blunging
• blunk
• blunked
• blunker
• blunkers
• blunking
• blunks
• blunt
• blunted
• blunter
• bluntest
• blunting
• blunt instrument
• blunt instruments
• bluntish
• bluntly
• bluntness