1. Not anticipated
   "unanticipated and disconcerting lines of development"
   - unforeseen, unlooked-for, out of the blue

See also: unexpected

• water rat
• water right
• water sapphire
• water scooter
• water scorpion
• water shamrock
• water shrew
• water skater
• water ski
• water snake
• water softener
• water spaniel
• water speedwell
• water spirit
• water sport
• water sprite
• water star grass
• water starwort
• water stoma
• water strider
• water supply
• water system
• water table
• water tank
• water tap