deleterious /del-i-tēˈri-əs/

1. Harmful or destructive
2. Poisonous

deletēˈriously adverb

• precisians
• precision
• precisionist
• precisionists
• precisions
• precisive
• preclassical
• preclinical
• preclude
• precluded
• precludes
• precluding
• preclusion
• preclusions
• preclusive
• preclusively
• precocial
• precocious
• precociously
• precociousness
• precociousnesses
• precocities
• precocity
• precognisant
• penicillins