unnoticeable

adjective

un·​no·​tice·​able ˌən-ˈnō-tə-sə-bəl 

: not worthy or likely to be noticed : not noticeable

a tiny, unnoticeable mark

an unnoticeable change

unnoticeably

ˌən-ˈnō-tə-sə-blē 

adverb

Synonyms of unnoticeable

• invisible
• discreet
• unnoticed
• inconspicuous

Examples of unnoticeable in a Sentence

a nearly unnoticeable change in the color

Recent Examples on the Web

But the spinning trick has real limits that make this drone far from being completely unnoticeable. — New Atlas, 17 July 2026

Placing a small, unnoticeable camera can be tricky and, for some nests, requires a helicopter. — Ava Berger, NPR, 29 Apr. 2026

The consequences of such an error, in the context of a computation where there is no cross-checking in place, can range from unnoticeable to catastrophic. — Big Think, 24 Feb. 2026

Except her shell is rather flat compared to others’, its spiral unremarkable, its apex nearly unnoticeable. — Literary Hub, 23 Feb. 2026

Word History

First Known Use

1760, in the meaning defined above

Rhymes for unnoticeable

• noticeable