Synonyms for unfounded
- adjective
Most common
All synonyms
Adjective
1. Groundless — having no strong foundation; not based on solid reasons or facts
groundless, baseless, unsubstantiated, unwarranted, unjustified, unsupported, false, unproven, unproved UK, idle, ungrounded, gratuitous, wild, flimsy, chimerical, vain, issueless
Definitions
- adj. 1
Having no strong foundation; not based on solid reasons or facts.
an unfounded report; unfounded fears
Related words
- Word family
- unfoundedly
Example sentences
- unwarranted I feel resentment against your unwarranted criticism.
- baseless You've got quite the talent for making baseless accusations.
- unsubstantiated Certainty, it was an unsubstantiated rumour.
- groundless So far, your action seems completely groundless.
Popularity over time
| Word | 1850 → 2019 | Trend |
|---|---|---|
| unfounded | steady | |
| unwarranted | falling | |
| baseless | steady | |
| unsubstantiated | rising | |
| groundless | falling |
Use in printed books, per decade from 1850 to 2019.
By length
- 4 letters
- wild1, idle2, vain1
- 5 letters
- false1
- 6 letters
- flimsy2
- 8 letters
- baseless2, unproven3, unproved2
- 9 letters
- issueless3
- 10 letters
- gratuitous4, groundless2, ungrounded, chimerical4
- 11 letters
- unwarranted4, unjustified4, unsupported4
- 15 letters
- unsubstantiated6
The small number after each word is its number of syllables (idle2 = 2 syllables).