Not compulsory and Selective

Selective and not compulsory are semantically related. in able to be chosen topic. In some cases you can use "Selective" instead an adjective phrase "Not compulsory".

Selective adjective - Tending to select carefully.

Not compulsory and selective are semantically related. You can use "Not compulsory" instead an adjective "Selective".

Nearby Words: select, selection, selected, selecting, selector