doubtless

C2+ Topic:Mind & Cognition

US /ˈdaʊtləs/ UK /ˈdaʊtləs/ See IPA manual

adv adj

Meanings

1

adv
certainly or very probably; without doubt

He will doubtless complain about the new policy.

Thesaurus

Synonyms

1 adv · certainly or very probably;... certainly undoubtedly surely assuredly unquestionably indubitably

Opposites

doubtfully uncertainly questionably

Word family

Derived forms doubtlesslydoubtlessness

Related forms doubt doubtful

Etymology

From doubt + -less; doubt is from Old French douter, from Latin dubitare ('to waver, hesitate'), from dubius ('uncertain').

douter Old French dubitare Latin dubius Latin

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Topics

Mind & Cognition Word Formation & Derivatives

# doubtless

**Type:** Word
**Level:** C2+
**Part of speech:** adv, adj
**IPA (US):** ˈdaʊtləs
**IPA (UK):** ˈdaʊtləs

## Meanings
1. certainly or very probably; without doubt

## Examples
- He will doubtless complain about the new policy.

## Synonyms
- certainly
- undoubtedly
- surely
- assuredly
- unquestionably
- indubitably

## Antonyms
- doubtfully
- uncertainly
- questionably

## Derived Forms
- doubtlessly
- doubtlessness

## Related Forms
- doubt
- doubtful

## Roots and Affixes
- Root: douter
- Root: dubitare
- Root: dubius

## Etymology
From doubt + -less; doubt is from Old French douter, from Latin dubitare ('to waver, hesitate'), from dubius ('uncertain').

## AI Etymology
Doubtless is from doubt + -less; doubt is from Old French douter, from Latin dubitare ('to waver, hesitate'), from dubius ('uncertain'). Important recorded forms include douter (Old French), dubitare (Latin), and dubius (Latin). Morphologically, the word is a built form whose named elements carry part of the historical sense. Its deeper history remains uncertain, with proposed links left as possibilities rather than a single settled derivation. The current sense covers certainly or very probably; without doubt. The wider family includes derived forms such as doubtlessly and doubtlessness and related words such as doubt and doubtful.

## Topics
- Mind & Cognition
- Word Formation & Derivatives

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doubtless

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