crucial /krooˈshəl/

1. Testing or decisive
2. Essential, very important
3. Very good (slang)
4. Crosslike
5. Of the nature of a crux

cruˈcially adverb

• unreverted
• unrevised
• unrevoked
• unrewarded
• unrewardedly
• unrewarding
• unrhymed
• unrhythmical
• unrhythmically
• unribbed
• unrid
• unridable
• unridden
• unriddle
• unriddleable
• unriddled
• unriddler
• unriddlers
• unriddles
• unriddling
• unrideable
• unrifled
• unrig
• unrigged
• unrigging