What term describes something done carefully or completely?

The term that describes something done carefully or completely is "thorough." This word conveys a sense of comprehensive attention to detail, indicating that every part of a task has been considered and executed with care. When something is completed in a thorough manner, it reflects diligence and a commitment to ensuring that no aspects are overlooked.

In contrast, the other terms have different meanings. "Thoughtful" implies consideration or reflection, often in a context of being considerate to others. "Tedious" suggests that a task is long, tiresome, or monotonous, which does not necessarily relate to the completeness or care of the task. "Turbulent" refers to a state of disorder or instability and does not apply to the concept of carefulness or thoroughness at all. Hence, "thorough" is the most appropriate term for describing something done with care and completeness.