The Collaborative International Dictionary of English v.0.48:

Bangladeshi \Bangladeshi\ prop. n.
   A native or inhabitant of Bangladesh.
   [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Bangladeshi \Bangladeshi\ prop. adj.
   Of, pertaining to, or characteristic of Bangladesh.
   Bangladeshi dialects

   Syn: East Pakistani.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Bangladeshi
    adj 1: of or relating to or characteristic of Bangladesh or its
           people or language; "Bangladeshi dialects" [syn:
           Bangladeshi, East Pakistani]
    n 1: a native or inhabitant of Bangladesh