The term 'un accustom' refers to any situation where one is no longer familiar or accustomed to a particular thing or habit. There are numerous synonyms that can be used in place of this phrase to convey the same meaning. Some of the commonly used synonyms for 'un accustom' include unaccustomed, unfamiliar, new, strange, unknown, different, rare, uncommon, and unusual. These synonyms help expand the scope of the original word, allowing for more precise descriptions of situations where an individual may feel out of their comfort zone. Whether you are writing an article or simply looking to expand your vocabulary, using synonyms for 'un accustom' can help you express your ideas more clearly and effectively.