1. Moving upward or along at a considerable height
   "some highflying fighter pilot fired a cannon shell into it" 
2. Extravagant or ambitious or extreme in aims or opinions
   "they did not understand what had happened at the once highflying company"

See also: ascending, unrestrained

• pinion and crown wheel
• pinion and ring gear
• pinioned
• pinite
• pink
• pink bollworm
• pink calla
• pink cockatoo
• pink disease
• pink disease fungus
• pink elephants
• pink family
• pink fivecorner
• pink fritillary
• pink gin
• pink lady
• pink of my John
• pink paper daisy
• pink pound
• pink sand verbena
• pink shower
• pink shower tree
• pink slip
• pink wine
• pink-and-white everlasting