MatureWordNet Explorer

fully considered and perfected

being changed over time so as to be e.g. stronger or more complete or more useful

(of birds) having developed feathers or plumage; often used in combination

(of a young bird) having acquired its flight feathers

(of a bird) having reached full development with fully grown adult plumage; ready to fly

(used especially of persons) having lived for a relatively long time or attained a specific age

state of being mature; full development

how long something has existed