nonoptional

C2+ Topic:Describing Qualities

US /ˌnɑnˈɑpʃənəl/ UK /ˌnɒnˈɒpʃənəl/ See IPA manual

adj

Meanings

1

adj
not optional; mandatory or required

Safety training is nonoptional for all new employees.

Thesaurus

Synonyms

1 adj · not optional; mandatory or... mandatory compulsory obligatory required necessary

Opposites

optional voluntary discretionary

Word family

Related forms optional option opt

Etymology

From non- ('not') + optional, from Latin optio ('choice'), from optare ('to choose, wish').

non Latin optare Latin

View etymology graph ->

Topics

Describing Qualities Word Formation & Derivatives

# nonoptional

**Type:** Word
**Level:** C2+
**Part of speech:** adj
**IPA (US):** ˌnɑnˈɑpʃənəl
**IPA (UK):** ˌnɒnˈɒpʃənəl

## Meanings
1. not optional; mandatory or required

## Examples
- Safety training is nonoptional for all new employees.

## Synonyms
- mandatory
- compulsory
- obligatory
- required
- necessary

## Antonyms
- optional
- voluntary
- discretionary

## Related Forms
- optional
- option
- opt

## Roots and Affixes
- Root: non
- Root: optare

## Etymology
From non- ('not') + optional, from Latin optio ('choice'), from optare ('to choose, wish').

## AI Etymology
Nonoptional comes from non- ('not') + optional, from Latin optio ('choice'), from optare ('to choose, wish'). The etymological trail includes Latin non and Latin optare. As an adjective, nonoptional means not optional; mandatory or required. The same family is visible in related forms such as optional, option, and opt. Morphologically, the word is built from the elements named in its history, so the modern form preserves a visible compound, prefix, or suffix structure.

## Topics
- Describing Qualities
- Word Formation & Derivatives

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