informally

/ɪnˈfɔrməli/
adverb
  1. In a relaxed, casual, or unofficial way.
    • She spoke informally with the staff before the meeting began.
    • The two companies agreed informally to share resources.
    • They dressed informally for the picnic.
What does "informally" mean? | whatsthatwordmean | whatsthatwordmean