undetectable

ADJECTIVE

imperceptible

Synonyms

STRONGEST

gradual inaudible indistinguishable insignificant invisible microscopic subtle

WEAK

ephemeral evanescent fine impalpable imponderable inappreciable inconsiderable inconspicuous indiscernible indistinct infinitesimal insensible minute momentary shadowy slight small tiny trivial unnoticeable vague

Antonyms

WEAK

apparent conspicuous distinct evident noticeable obvious perceptible seeable striking unobscured

ADJECTIVE

imponderable

Synonyms

STRONG

ephemeral fine gradual infinitesimal intangible minute slight small

WEAK

evanescent impalpable inappreciable inaudible inconsiderable inconspicuous indiscernible indistinct indistinguishable insensible insignificant invisible microscopic momentary shadowy subtle tiny trivial unnoticeable unobservable vague

Antonyms

STRONG

big huge important large rough significant substantial thick

ADJECTIVE

inappreciable

Synonyms

WEAK

ephemeral evanescent fine gradual impalpable imponderable inaudible inconsiderable inconspicuous indiscernible indistinct indistinguishable infinitesimal insensible insignificant intangible invisible microscopic minute momentary shadowy slight small subtle tiny trivial unnoticeable unobservable vague

ADJECTIVE

unnoticeable

Synonyms

WEAK

ephemeral evanescent fine gradual impalpable imponderable inappreciable inaudible inconsiderable inconspicuous indiscernible indistinct indistinguishable infinitesimal insensible insignificant intangible invisible microscopic minute momentary shadowy slight small subtle tiny trivial unobservable vague

ADJECTIVE

unobservable

Synonyms

WEAK

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

I had to be reminded that U=U, or Undetectable = Untransmittable.

From Los Angeles Times • Mar. 7, 2025

Undetectable in a finished dish, these concentrated brown bits may seem small, but the impact they have on flavor is huge.

From Salon • Jan. 13, 2022

Polymer-based guns are different from “3-D guns” made on 3-D printers, which are almost totally plastic and already illegal under the federal Undetectable Weapons Act.

From Washington Post • Oct. 9, 2021

"Undetectable equals untransmittable" should be basic HIV knowledge for everyone, experts said.

From BBC • May 2, 2019

Ron muttered to Harry one evening as Harry sat finishing a nasty essay on Undetectable Poisons for Snape.

From "Harry Potter And The Prisoner Of Azkaban" by J.K. Rowling

undetectable

Example Sentences

Related Words