"Teeteringly" is a descriptive word that describes something that is unsteady or wobbling. Other synonyms for this word include shakily, precariously, unsteadily, waveringly, falteringly, and quiveringly. These words all describe movements or actions that are not stable or secure. When someone is walking along a narrow bridge or crossing a rocky river, they may feel teetering or unbalanced. In order to avoid falling or stumbling, they may need to move shakily or unsteadily. Overall, these synonyms help to convey a sense of instability and the need for caution or careful balance.