impossible /im-posˈi-bl/

1. That cannot be
2. That cannot be done or dealt with
3. That cannot be true
4. Out of the question
5. Hopelessly unsuitable or difficult to deal with (informal)
6. Beyond doing anything with

A person or thing that is impossible

impossˈibilism noun

Belief in or advocacy of an impracticable policy

• spears
• spear-shaft
• spear-shafts
• spear side
• spear sides
• spear tackle
• spear tackles
• spear thistle
• spear thistles
• spear-thrower
• spear-throwers
• spearwort
• spearworts
• speary
• speat
• spec
• spec-built
• speccies
• speccy
• special
• Special Air Service
• special area
• Special Boat Service
• Special Branch
• special constable