Synonyms for Skillful (same or very similar meaning)
WordNet sense 1 (having or showing knowledge and skill and aptitude):
adept, expert, good, practiced, proficient, skilful, adept
WordNet sense 2 (having or showing or requiring special skill):
skilled
WordNet sense 3 (done with delicacy and skill):
nice
WordNet sense 4 (sharply exact or accurate or delimited):
precise
From the ODE community, based on WordNet
add/edit