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

See also: informal

Antonym: formally

• Entelea
• entelechy
• entellus
• entente
• entente cordiale
• enter
• enter into
• enter key
• enter upon
• enteral
• enteric
• enteric bacteria
• enteric fever
• enteric-coated aspirin
• enterics
• entering
• enteritis
• enterobacteria
• Enterobacteriaceae
• enterobiasis
• Enterobius
• Enterobius vermicularis
• enteroceptor
• enterokinase
• enterolith