Upbears is a relatively uncommon verb, meaning to support or sustain. Some synonyms for upbears could include uplift, bolster, fortify, reinforce, or buoy. Each of these words conveys a slightly different nuance of meaning, but all generally involve providing strength or support to something or someone. Other possible synonyms might include carry, hold, lift, or bear, although these words might not capture the same connotations of stability and fortification as upbears does. Depending on the context, other synonyms for upbears might include encourage, motivate, inspire, or embolden, if the focus is on emotional or psychological support rather than physical stability.