The phrase "in for" means to be expecting or subject to something. There are several synonyms for this phrase, including "in line for," "due for," "set for," and "destined for." These synonyms all suggest a sense of inevitability or expectation, emphasizing that something is going to happen or is likely to happen. For example, if someone is due for a promotion, they are likely to receive it in the near future. Alternatively, if someone is set for a difficult task, it means they are expected to succeed despite the challenges. Using synonyms for "in for" can help to avoid repetition in writing or speech while conveying the same general meaning.