dumbly Edit
    മിണ്ടാതെ, മൗനമായി

dumbly Edit
Adverb
    in a stupid manner

dumbly Edit
Adverb
    in an inarticulate manner
eg: I nodded dumbly and he slit the envelope

Entries from Olam Open Database

Dumbly(adjective)::
    നിശ്ശബ്‌ദമായി മൗനമായി,
Dumbly(conjunction)::
    മിണ്ടാതെ,

visit http://olam.in/ for details