Synonyms for the phrase "avoid human companionship" include solitude, seclusion, isolation, hermitage, and sequestration. Solitude refers to being alone as a choice or preference. Seclusion is withdrawing oneself from society for a particular reason such as religious or spiritual purposes. Isolation refers to being physically separated or away from society due to circumstances such as illness or imprisonment. Hermitage refers to someone who chooses to live a solitary life away from society completely. And sequestration refers to being kept apart from society due to a particular circumstance such as quarantine or social distancing. These synonyms can help us understand the nuances of why someone may choose to be alone or apart from others.