To emphasize efficiency:
* Highly efficient: This emphasizes the high level of efficiency.
* Super efficient: This emphasizes a very high level of efficiency.
* Ultra efficient: This emphasizes an extremely high level of efficiency.
* Remarkably efficient: This emphasizes the noticeable efficiency.
To express a specific type of efficiency:
* Cost-efficient: This emphasizes efficiency in terms of cost.
* Energy-efficient: This emphasizes efficiency in terms of energy consumption.
* Time-efficient: This emphasizes efficiency in terms of time.
* Resource-efficient: This emphasizes efficiency in terms of resource usage.
To express a limitation in efficiency:
* Inefficient: This is the opposite of efficient, meaning lacking in efficiency.
To express a specific type of inefficiency:
* Cost-inefficient: This means not being efficient in terms of cost.
* Time-inefficient: This means not being efficient in terms of time.
* Resource-inefficient: This means not being efficient in terms of resource usage.
To express a gradual increase in efficiency:
* More efficient: This indicates a higher level of efficiency compared to something else.
* Less efficient: This indicates a lower level of efficiency compared to something else.
* Most efficient: This indicates the highest level of efficiency in a group.
The specific prefix you choose will depend on the context and the meaning you want to convey.