The word "more trustable" suggests a higher level of trustworthiness. If we were to look for antonyms for this phrase, we would look for words that negate or diminish trust. Some antonyms may include "unreliable," "untrustworthy," "dishonest," "deceitful," or "unfaithful." These words signify a negative connotation, implying that the person or thing in question cannot be trusted. However, it's important to note that the opposite of trust shouldn't always mean distrust. Instead of searching for antonyms, it's beneficial to use words that offer a neutral description, such as "neutral," "unknown," or "ambiguous," when the level of trust cannot be determined.