Reserved and Retained

Reserved adjective - Tending not to speak frequently (as by habit or inclination).

Retained and reserved are semantically related in set aside topic. In some cases you can use "Retained" instead an adjective "Reserved", when it comes to topics like held for future use.

Nearby Words: reserve, reservation, reservedly, reserving

Retained adjective - Continued in your keeping or use or memory.

Reserved and retained are semantically related in kept topic. You can use "Reserved" instead an adjective "Retained".

Nearby Words: retainer, retaining