The term 'Untrustworthy Types' refers to people who are dishonest and cannot be trusted. KNAVES (6 letters) are people who are sly and deceitful, often for their own gain. CADS (4 letters) are people who behave in a dishonorable or immoral way. Sneaks (6 letters) are people who act in a sneaky or secretive manner. TwoFacedLiars (13 letters) are people who are deceitful and untruthful, often telling different stories to different people. All of these terms refer to people who are not trustworthy and should not be trusted.