Fitness is good physical condition. If you're a fitness nut and you're constantly working out, everybody else at the gym might be eyeing your sculpted muscles with envy and marveling at your stamina and strength.

Fitness can also refer to your being fit, or qualified, for something. If you show up in ragged jeans and a dirty t-shirt to interview for a job in the clean room of a microchip factory, your interviewer might question your fitness for the position. For a ship, fitness is a measure of whether it's seaworthy. In biology, an organism's fitness for a particular environment is its ability to survive and reproduce in those conditions.

Definitions of fitness
  1. noun
    the quality of being suitable
    “they had to prove their fitness for the position”
    synonyms: fittingness
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    the quality of not being suitable
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    making, qualification
    an attribute that must be met or complied with and that fits a person for something
    habitability, habitableness
    suitability for living in or on
    the quality or state of being eligible
    the quality or state of being ineligible
    type of:
    suitability, suitableness
    the quality of having the properties that are right for a specific purpose
  2. noun
    the quality of being qualified
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    type of:
    competence, competency
    the quality of being adequately or well qualified physically and intellectually
  3. noun
    good physical condition; being in shape or in condition
    synonyms: physical fitness
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    softness, unfitness
    poor physical condition; being out of shape or out of condition (as from a life of ease and luxury)
    a state of fitness and good health
    type of:
    condition, shape
    the state of (good) health (especially in the phrases `in condition' or `in shape' or `out of condition' or `out of shape')
  4. noun
    fitness to traverse the seas
    synonyms: seaworthiness
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    type of:
    a state or condition free from damage or decay
Word Family
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