However, depending on the context, you might use prefixes like:
* Anti-: meaning against or opposed to (e.g., anticipate)
* Un-: meaning not or the opposite of (e.g., unexpect)
* Pre-: meaning before or in advance of (e.g., pre-empt)
* Over-: meaning too much or excessively (e.g., over-expect)
* Mis-: meaning wrongly or incorrectly (e.g., misinterpret)
The best prefix will depend on the specific meaning you want to convey.