fitness

/ˈfɪtnɪs/

/ˈfɪtnəs/

Other forms: fitnesses

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

   antonyms:

   unfitness

   the quality of not being suitable

   types:

   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

   eligibility

   the quality or state of being eligible

   ineligibility

   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
   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

   antonyms:

   unfitness

   poor physical condition; being out of shape or out of condition (as from a life of ease and luxury)

   types:

   fettle

   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

   type of:

   soundness

   a state or condition free from damage or decay