Productive describes someone or something with a lot of things completed or someone or something that is very fertile and has abundant results. (adjective)
An example of something that would be described as productive is a machine that cans a large volume vegetables.
An example of someone who would be described as productive is a person who completes a lot of work in a short amount of time.
Producing abundantly; fertile. See Synonyms at fertile.
Yielding favorable or useful results; constructive.
Economics Of or involved in the creation of goods and services to produce wealth or value.
Effective in achieving specified results; originative: policies productive of much harm.
Medicine
a. Producing mucus or sputum: a productive cough.
b. Forming new tissue: a productive inflammation.
Linguistics
a. Of or relating to the linguistic skills of speaking and writing.
b. Of or relating to a linguistic element or rule that can be used to form further examples of a particular feature or pattern. The English past tense suffix -ed is productive since it continues to be added to new verbs to form the past tense.