The phrase "is in suspense" typically refers to a state of anticipation or uncertainty, where the outcome of a particular situation is unknown. There are numerous synonyms that can be used to convey a similar meaning, such as "is on hold," "is pending," "is uncertain," "is in limbo," "is unresolved," "is unsettled," "is up in the air," or "is in doubt." Each of these phrases suggests a feeling of tension or hesitation, and can be used to describe a variety of scenarios, from waiting for a decision or outcome to a sense of unease or foreboding. Regardless of the specific wording used, the underlying sense of anticipation and uncertainty remains the same.