1. Of an organism's environment; least favourable for survival
   - pessimum

See also: worst

• clean-limbed
• clean-living
• clean-shaven
• cleanable
• cleaner
• cleaners
• cleaning
• cleaning device
• cleaning equipment
• cleaning implement
• cleaning lady
• cleaning pad
• cleaning woman
• Anglo-Irish
• Anglo-Jewish
• Anglo-Norman
• Anglo-Saxon
• Anglo-Saxon deity
• Anglomania
• anglophil
• anglophile
• Anglophilia
• Anglophilic
• anglophobe
• Anglophobia