Backdoor and Esoteric

Backdoor noun - An entrance at the rear of a building.

Esoteric and backdoor are semantically related. in hidden topic. In some cases you can use "Esoteric" instead an adjective "Backdoor".

Esoteric adjective - Difficult for one of ordinary knowledge or intelligence to understand.

Backdoor and esoteric are semantically related. Sometimes you can use "Backdoor" instead an adjective "Esoteric".