Fitness is the ability to do daily tasks without fatigue

Best Regards Wesam Salah Ibrahim

Being fit is being able to do activities in life (1) that you want to do, (2) when you want to do it. This definition hold true at any age, with or without mental or physical disability.

The term fitness is operative in three at least 3 domains:

1. Physical

2. Mental

3. Spiritual

Thanks so much for your valuable reply

Dennis Mazur

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اللياقة البدنية هي الحالة السليمة للفرد الرياضي من حيث كفاءة حالته

الجسمانية و التي تمكنه من استخدامها بمهارة وكفاءة خلال الاداة البدني والحركي بافضل درجة و أقل جهد ممكن

Fitness means enjoying life to the fullest,with healthy body and mind condition,good social relationship,positive outlook in life with full contentment.

Who could sleep deeply without any fear in his or her subconscious mind.

Fitness is the ability to do daily tasks without fatigue

Best Regards Wesam Salah Ibrahim

Psychosomatic and socio-economic one.

Dr Kamath Madhusudhana

The capability of the body of distributing inhaled oxygen to muscle tissue during increased physical effort.

According to the Centers for Disease Control and Prevention (CDC), physical fitness is defined as 'the ability to carry out daily tasks with vigor and alertness, without undue fatigue, and with ample energy to enjoy leisure-time pursuits and respond to emergencies.' Based on this definition, fitness involves everything from getting out of bed to hiking to performing CPR.

https://study.com/academy/lesson/what-is-fitness-definition-components-types-examples.html

Fitness has clear definition. But in my words if you runs with sportsman like Messi (Football Player) or Mohammad Nabi (cricket player)...... Then u have great fitness..

I like he definition of Manal Hadi Kanaan , well done, it is thorough and consice

As being in good physical shape or being suitable for a specific task or hope.

In a nutshell, fitness is defined as the state of being physically fit and healthy. ... "Fitness" is a broad term that means something different to each person, but it refers to your own optimal health and overall well-being. Being fit not only means physical health, but emotional and mental health, too.

https://www.sharecare.com/health/fitness-exercise/what-is-fitness

Physical fitness is a state of health and well-being and, more specifically, the ability to perform aspects of sports, occupations and daily activities. Physical fitness is generally achieved through proper nutrition, moderate-vigorous physical exercise, and sufficient rest

.https://en.m.wikipedia.org/wiki/Physical_fitness

Before the industrial revolution, fitness was defined as the capacity to carry out the day’s activities without undue fatigue. However, with automation and changes in lifestyles physical fitness is now considered a measure of the body's ability to function efficiently and effectively in work and leisure activities, to be healthy, to resist hypokinetic diseases, and to meet emergency situations.

https://en.m.wikipedia.org/wiki/Physical_fitness

Physical fitness is defined as “a set of attributes that people have or achieve that relates to the ability to perform physical activity.” This description goes beyond being able to run fast or lift heavy weights. Despite being important, these attributes only address single areas of fitness. This article provides details of the five main components of physical fitness.

https://www.medicalnewstoday.com/articles/7181

The condition of being physically fit and healthy.