ruthless /roothˈləs/

1. Pitiless, brutal
2. Severe, unsparing

ruthˈlessly adverb

• water-bound
• water box
• water boxes
• water-brain
• water-brains
• water brash
• water brashes
• water break
• water breaks
• water-breather
• water-breathers
• water-breathing
• water brose
• waterbuck
• waterbucks
• water buffalo
• water buffaloes
• water bug
• water bugs
• water bull
• water bulls
• water bus
• water buses
• water busses
• water butt