"Up bears" is an uncommon term that may not have many synonyms. However, if we break down the phrase, we can find possible synonyms. "Up" suggests a location or direction upwards. Synonyms for "up" could include "above", "high", "elevated" or "lifted". "Bears" refers to animals in the Ursidae family, also known as "bears". Other words that could be used as a synonym for "bears" include "large mammals", "beasts", "grizzlies", or "cubs". Based on this analysis, possible synonyms for "up bears" could be "elevated bears", "large mammals above", or even simply "uplifted bears".