The Collaborative International Dictionary
                    Rustically
                    
                        
                
                                                                    Rustical \Rus`tic*al\, a.
   Rustic. ``Rustical society.'' 
--Thackeray. --
    Rus"tic*al*ly, adv. --  Rus"tic*al*ness, n.
Wiktionary
                    rustically
                    
                        
                
                                                                    adv. In a rustic manner.
Usage examples of "rustically".
He was on his back, under a canopy of woven fronds, which was certainly rustically unusual.