'Nattily' definitions:

Definition of 'nattily'

(from WordNet)
adverb
In a natty manner; with smartness; "it was arranged carefully and nattily"

Definition of 'Nattily'

From: GCIDE
  • Natty \Nat"ty\, a. [Cf. Neat clean.] Neatly dressed; smart; trim; tidy; spruce. [Colloq.] [1913 Webster] -- {Nat"ti*ly}, adv. -- {Nat"ti*ness}, n. [1913 Webster]