unfitness

C2+ Topic:Abstract Ideas

US /ʌnˈfɪtnəs/ UK /ʌnˈfɪtnəs/ See IPA manual

Meanings

1

noun
the state of being unsuitable or physically unhealthy

His unfitness for command became obvious during the crisis.

Thesaurus

Synonyms

1 noun · the state of being... unsuitabilityinadequacy incompetence ineptitude incapacity inaptitude

Opposites

fitness suitability aptitude competence

Word family

Related forms fit fitness unfit

Etymology

From unfit (un- 'not' + fit) + the noun-forming suffix -ness; fit is of uncertain origin, perhaps from Middle English fitten ('to marshal troops, be suitable').

un- Old English -ness Old English

View etymology graph ->

Topics

Abstract Ideas Word Formation & Derivatives

External links

# unfitness

**Type:** Word
**Level:** C2+
**Part of speech:** noun
**IPA (US):** /ʌnˈfɪtnəs/
**IPA (UK):** /ʌnˈfɪtnəs/

## Meanings
1. the state of being unsuitable or physically unhealthy

## Examples
- His unfitness for command became obvious during the crisis.

## Synonyms
- unsuitability
- inadequacy
- incompetence
- ineptitude
- incapacity
- inaptitude

## Antonyms
- fitness
- suitability
- aptitude
- competence

## Related Forms
- fit
- fitness
- unfit

## Roots and Affixes
- Root: un-
- Root: -ness

## Etymology
From unfit (un- 'not' + fit) + the noun-forming suffix -ness; fit is of uncertain origin, perhaps from Middle English fitten ('to marshal troops, be suitable').

## AI Etymology
Unfitness is from unfit (un- 'not' + fit) + the noun-forming suffix -ness; fit is of uncertain origin, perhaps from Middle English fitten ('to marshal troops, be suitable'). Important recorded forms include un- (Old English) and -ness (Old English). Morphologically, the un- element marks negation, reversal, removal, or deprivation, while the base supplies the action, quality, or state being denied or undone. The wording preserves that uncertainty: the older history is best read as a cautious account rather than a fully settled chain. The modern sense is largely compositional, with the historical elements narrowing into a stable English lexical item. In current use it covers the state of being unsuitable or physically unhealthy. The wider family includes related words such as fit, fitness, and unfit.

## Topics
- Abstract Ideas
- Word Formation & Derivatives

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