1. Not bound by rule or law or convention
   "bewildered by the old go-as-you-please liberty of alliterative rhythm"

See also: unconventional

• fluorescent fixture
• fluorescent lamp
• fluoridate
• fluoridation
• fluoride
• fluoridisation
• fluoridise
• fluoridization
• fluoridize
• fluorine
• fluorite
• fluoro-
• fluoroboric acid
• fluoroboride
• fluorocarbon
• fluorocarbon plastic
• fluorochrome
• fluoroform
• fluoroscope
• fluoroscopy
• fluorosis
• fluorouracil
• fluorspar
• fluosilicate
• fluosilicic acid