| Subject | English | Spanish |
| comp., MS | pessimistic concurrency | simultaneidad pesimista (A method of managing concurrency by using a lock technique to prevent other clients from updating the same object at the same time) |
| IT, dat.proc. | pessimistic duration | duración pesimista |
| comp., MS | pessimistic duration | duración pesimista (The worst-case possibility for the total span of active working time expected for a task, that is, the amount of time from the pessimistic start to pessimistic finish of a task) |
| comp., MS | pessimistic locking | bloqueo pesimista (A type of locking in which the page containing one or more records, including the record being edited, is unavailable to other users when you use the Edit method, and remains unavailable until you use the Update method) |
| IMF. | pessimistic scenario | marco hipotético más desfavorable |
| IMF. | pessimistic scenario | marco hipotético pesimista |
| IMF. | pessimistic scenario | escenario pesimista |
| IMF. | pessimistic scenario | escenario más desfavorable |
| IMF. | pessimistic scenario | escenario de medidas de política desfavorables |