"Unfitness" Natural Recordings by Native Speakers
Lack of physical or mental health and strength, making someone unsuitable for a particular activity or task.
Unflappable refers to a person who remains calm and composed, especially in difficult or trying situations, and does not lose their tempers or their ability to think clearly.
Lacking favor or approval; not praising or complimentary, often implying that something or someone is unappealing or looks bad.