Synonyms of imperceptible

imperceptible

adjective

ˌim-pər-ˈsep-tə-bəl 

as in invisible

not perceptible by a sense or by the mind

a slight difference in hue between the two glasses that's imperceptible unless they're placed side by side

Synonyms & Similar Words

• invisible
• subtle
• indistinguishable
• inappreciable
• slight
• impalpable
• unseen
• obscure
• inaudible
• intangible
• hidden
• insensible
• faint
• inconspicuous
• indistinct
• unnoticeable
• insignificant
• concealed
• trivial
• vague
• slender
• unseeable
• liminal
• disguised
• covert
• unapparent
• buried
• shrouded

Antonyms & Near Antonyms

• perceptible
• discernible
• appreciable
• visible
• palpable
• sensible
• tangible
• observable
• audible
• recognizable
• obvious
• noticeable
• evident
• ponderable
• clear
• prominent
• conspicuous
• striking
• manifest
• significant
• plain
• apparent
• distinct
• straightforward
• eye-catching

Example Sentences

Recent Examples of imperceptible

The contact was imperceptible to the naked eye, but a space-age sensor in the ball had confirmed it. — Los Angeles Times, 12 July 2026

The tool, developed by independent AI engineer Luke Geel, analyzes past results and players’ activity—from posture to blink rate—spotting connections that might be imperceptible to the average viewer but visible to top pros. — Jacob Feldman, Sportico.com, 3 July 2026

My dream foundation is one that conceals blemishes but is so imperceptible that people will ask me about my skin care routine. — Kaelin Dodge, InStyle, 16 June 2026

All videos created with Omni will include Google's imperceptible digital watermark, SynthID, but Google is also adding content credentials verification to the Gemini app. — ABC News, 19 May 2026