1. Without formality
   "he visited us informally" 
2. With the use of colloquial expressions
   - colloquially, conversationally

See also: informal

Antonym: formally

• phoney
• phonic
• phonics
• phono-
• phonogram
• phonogramic
• phonograph
• phonograph album
• phonograph needle
• phonograph record
• phonograph recording
• phonograph recording disk
• phonography
• phonolite
• phonologic
• phonologic system
• phonological
• phonological system
• phonologist
• phonology
• phonometer
• phonon
• phonophobia
• phony
• phooey