てきとう適当tekitou
1.

Describes something that is exactly right or fitting for a particular state, purpose, or requirement, conveying a sense of appropriateness or suitability.

2.

Refers to a situation where actions or responses are done just enough to manage a task without thoroughness, resulting in a somewhat careless or half-hearted approach.

3.

Indicates a temporary or makeshift solution that aligns with current circumstances, often implying a lack of reliability or depth in the arrangement or decision-making.

4.

Highlights the characteristic of being suitable or relevant in context, often used to express how well something aligns with specific attributes or conditions expected in a given situation.

Example:

INF社の誰か最も適当な人を教えてください。

ふてきとう不適当futekitou
1.

Describes a state or condition that fails to meet the required or suitable standards for a given situation, resulting in a mismatch with expectations or norms.

2.

Refers to behaviors or actions that are deemed unsuitable or improper in a specific context, often leading to negative judgment or consequences.

3.

Indicates a lack of suitability or fitness for a particular purpose, highlighting a disconnect between what is needed and what is provided.

Example:

その水は飲むのに不適当だ。