Source : Webster's Revised Unabridged Dictionary (1913)

Crudely \Crude"ly\, adv.
   In a crude, immature manner.

Source : WordNet®

crudely
     adv 1: in a crude or unrefined manner; "he was crudely bold"
     2: in a crude and unskilled manner; "an inexpertly constructed
        lean-to" [syn: {artlessly}, {inexpertly}]