The phrase 'sugar coated' typically means to make something sound more pleasant or appealing than it really is. Antonyms of this phrase include blunt, frank, candid, truthful, direct, sincere, and honest. These words suggest that the speaker is not attempting to mask the reality of a situation, but is being forthright in their communication. Whereas sugar coating may be used to soften the blow of bad news or to make something seem more desirable, being honest and direct allows for an open and transparent dialogue. While sugar coating may feel easier in the short-term, honesty and transparency ultimately build stronger relationships and trust.