Counter-poised means to balance or counterbalance. The antonyms of the word include unbalance, upset, destabilize, and stir. To unbalance means to offset the equilibrium or make something uneven. To upset means to cause imbalance or disturb someone's emotions. Destabilize means to make something unstable or undermine the normal balance. To stir means to provoke emotions or disturb the balance of a situation. These words have opposite meanings to counter-poised, which denotes balance and stability. It is important to be aware of antonyms to better understand and communicate the nuances of language.