よけい余計yokei
1.

Describes a state of being more than necessary, often causing obstruction or being unwanted, as in doing or having things that are not needed.

2.

Indicates a quantity or degree that exceeds the ordinary level, suggesting that something is more than what is typically expected or required.

3.

Refers to an abundance or surplus, denoting a situation where there is more than a specified amount, leading to excess.

4.

Expresses a sense of heightened concern or involvement, particularly when circumstances amplify an existing tendency to be overly invested or worried.

5.

Conveys a feeling of increased desire or curiosity that intensifies in response to restrictions or prohibitions.

Example:

余計な努力の結果、彼の血圧は通常以上に上がった。

よけいもの余計者yokeimono
1.

A person who is seen as unnecessary in a situation, often creating a sense of discomfort or disruption for others, and whose involvement lacks purpose or significance.

2.

A character archetype in 19th-century Russian literature, portraying individuals who possess intelligence and education but are listless and unable to confront reality or adapt to their circumstances, often representing the decline of the aristocracy or the educated class.

3.

An individual whose presence feels extraneous, contributing little to the social dynamic, and is often perceived as a hindrance to the flow or harmony of a group interaction.