いいiiかげん加減kagen
1.
Describing an attitude or behavior characterized by a lack of diligence or commitment, often leading to incomplete or unsatisfactory results.
2.
Indicating a tendency to take a relaxed or indifferent approach to tasks or responsibilities, resulting in a lack of seriousness or thoroughness.
3.
Reflecting a way of acting that is marked by negligence or a casual disregard for important details or obligations.
Example:
いいかげんな話はやめろ。