Search Result for "informal": 
Wordnet 3.0

ADJECTIVE (4)

1. not formal;
- Example: "conservative people unaccustomed to informal dress"
- Example: "an informal free-and-easy manner"
- Example: "an informal gathering of friends"

2. not officially recognized or controlled;
- Example: "an informal agreement"
- Example: "a loose organization of the local farmers"
[syn: informal, loose]

3. used of spoken and written language;

4. having or fostering a warm or friendly and informal atmosphere;
- Example: "had a cozy chat"
- Example: "a relaxed informal manner"
- Example: "an intimate cocktail lounge"
- Example: "the small room was cozy and intimate"
[syn: cozy, intimate, informal]



The Collaborative International Dictionary of English v.0.48:

Informal \In*form"al\, a. [Pref. in- not + formal.]
   1. Not in the regular, usual, or established form; not
      according to official, conventional, prescribed, or
      customary forms or rules; irregular; hence, without
      ceremony; as, an informal writing, proceeding, or visit.
      [1913 Webster]

   2. Deranged in mind; out of one's senses. [Obs.]
      [1913 Webster]

            These poor informal women.            --Shak.
      [1913 Webster]


WordNet (r) 3.0 (2006):

informal
    adj 1: not formal; "conservative people unaccustomed to informal
           dress"; "an informal free-and-easy manner"; "an informal
           gathering of friends" [ant: formal]
    2: not officially recognized or controlled; "an informal
       agreement"; "a loose organization of the local farmers" [syn:
       informal, loose]
    3: used of spoken and written language [ant: formal]
    4: having or fostering a warm or friendly and informal
       atmosphere; "had a cozy chat"; "a relaxed informal manner";
       "an intimate cocktail lounge"; "the small room was cozy and
       intimate" [syn: cozy, intimate, informal]