The phrase "soft soaping" refers to the act of flattery or excessive praise in order to gain an advantage. Some antonyms of this term may include being frank, blunt, or honest. Other antonyms may include being critical, skeptical, or cautious. By being truthful and straightforward, one can avoid the negative connotations associated with soft soaping. Additionally, being fair and objective can also be considered opposite to soft soaping. Rather than trying to manipulate or control a situation through flattery, it is better to adopt a more balanced and rational approach in order to achieve a successful outcome.