1. In a fastidious and painstaking manner
   - painstakingly 
2. In a fastidious manner
   "he writes extremely musical music, of which the sound is fastidiously calculated and yet agreeably spontaneous and imaginative"

See also: fastidious

• foliolate
• foliose
• folium
• folk
• folk art
• folk ballad
• folk dance
• folk dancer
• folk dancing
• folk etymology
• folk music
• folk poet
• folk singer
• folk writer
• folkie
• folklore
• folklorist
• folks
• folksong
• folksy
• folktale
• folky
• follicle
• follicle-stimulating hormone
• follicular