free-and-easy

from WordNet (r) 3.0 (2006)

free-and-easy
    adj 1: natural and unstudied; "using their Christian names in a
           casual way"; "lectured in a free-and-easy style" [syn:
           {free-and-easy}, {casual}]

from The Collaborative International Dictionary of English v.0.48

free-and-easy \free-and-easy\ adj.
   1. unconstrained and informal; as, an informal free-and-easy
      manner. Opposite of {stiff}, {starchy}, {formal}.

   Syn: casual.
        [WordNet 1.5 +PJC]

   2. lacking normal concern for propriety.

   Syn: free-and-easy.
        [PJC]