well-developed russian

• налитой

  plump, full, ripe (of fruit), swollen

  well-developed, firm, muscular

• развито́й

  developed, well-developed, intelligent

• отрабо́тавший

  used, spent, worn out, worked out, decommissioned

  perfected, well-rehearsed, practiced, developed, proven

• прока́ченный

  upgraded, leveled up, well-developed, skilled

• прорабо́танный

  well-developed, elaborated, worked out, thoroughly thought out

  processed, worked, treated, revised

• спе́тый

  ripe

  mature (voice), well-developed (voice), trained (voice)

• уроди́вшийся

  well-grown, well-developed, bountiful (about harvest)