When it comes to expressing caution or warning against something, there are plenty of words that can be used instead of "to be avoided". Some of the synonyms include "shun", "avoidance", "evade", "bypass", "dodge", "sidestep", "abstain", "refrain", "eschew", "stay clear of", "steer clear of", "keep away from" and "not touch". Each of these words or phrases carry a slightly different tone or connotation, so choosing the right one for the situation is important. Whether it's avoiding something harmful, dangerous, or unpleasant, there are always alternative ways to express the importance of staying away from it.