If something is hypothetical, it is based on possible ideas or situations rather than actual ones.
例句
Let's look at a hypothetical situation in which Carol, a recovering cocaine addict, gets invited to a party.讓我們假設這樣一種情景，卡蘿爾，一位正在康復的可卡因成癮者，應邀去參加一個聚會。...a purely hypothetical question.純屬假設的問題