In a manner convenient or advantageous at some particular time. In a manner suitable for some particular purpose.

What is the meaning of opportunely?

adjective. appropriate, favorable, or suitable: an opportune phrase for the occasion. occurring or coming at an appropriate time; well-timed: an opportune warning.

Is doer a real word?

a person or thing that does something, especially a person who gets things done with vigor and efficiency. a person characterized by action, as distinguished from one given to contemplation.