Adjuvant and Under

Adjuvant adjective - Furnishing added support.

Under and adjuvant are semantically related. in lesser topic. In some cases you can use "Under" instead an adjective "Adjuvant", when it comes to topics like indirect.

Under adjective - Located below or beneath something else.

Adjuvant and under are semantically related. Sometimes you can use "Adjuvant" instead an adjective "Under".