Ill-advised and Subhuman

Ill-advised adjective - Showing poor judgment especially in personal relationships or social situations.

Subhuman and ill-advised are semantically related. In some cases you can use "Subhuman" instead an adjective phrase "Ill-advised".

Subhuman adjective - Having or showing the nature and appetites of a lower animal.

Ill-advised and subhuman are semantically related. Sometimes you can replace phrase "Ill-advised" with "Subhuman", this terms are similar.