Final answer:
'Being-with-others' is associated with Philosophy and the antonym can be understood as 'being-alone' or 'solitude'.
Step-by-step explanation:
Being-with-others is a concept that comes from the field of Philosophy and is associated with famous philosopher Martin Heidegger. The antonym for Being-with-others can be understood as being-alone or solitude. When you lack Being-with-others, you are essentially disconnected from social interaction and companionship.