Source : Webster's Revised Unabridged Dictionary (1913)

Plainly \Plain"ly\, adv.
   In a plain manner; clearly.

Source : WordNet®

plainly
     adv 1: unmistakably (`plain' is often used informally for
            `plainly'); "the answer is obviously wrong"; "she was
            in bed and evidently in great pain"; "he was
            manifestly too important to leave off the guest list";
            "it is all patently nonsense"; "she has apparently
            been living here for some time"; "I thought he owned
            the property, but apparently not"; "You are plainly
            wrong"; "he is plain stubborn" [syn: {obviously}, {evidently},
             {manifestly}, {patently}, {apparently}, {plain}]
     2: in a simple manner; without extravagance or embellishment;
        "she was dressed plainly"; "they lived very simply" [syn:
        {simply}]