Focusing on the number of tasks:
* Single-tasking: This is the most direct antonym, focusing on doing only one task at a time.
* Mono-tasking: Similar to single-tasking but emphasizes the singular focus.
Focusing on the level of attention:
* Focusing: This emphasizes the act of concentrating solely on one task, ignoring distractions.
* Deep work: This implies a state of focused, uninterrupted attention on a single task for a sustained period.
Focusing on the efficiency:
* Sequential task completion: This emphasizes completing tasks one at a time, ensuring each is finished before moving to the next.
* Streamlining: This suggests working in a way that eliminates distractions and maximizes efficiency on each individual task.
Focusing on the desired outcome:
* Productive: This focuses on achieving high-quality results, often implying that multitasking can lead to lower quality.
* Effective: Similar to "productive," but emphasizes achieving the desired outcome with minimal waste of time and effort.
The best antonym for "multitasking" will depend on the context and what you want to emphasize.