imperceptible

/'impə'septəbl/

Thân thiện

The temperature change was imperceptible to the guests.

Definition

1. Adjective:
   • Impossible or extremely difficult to perceive by the mind or senses: Describes something so slight, subtle, or gradual that it cannot be seen, heard, felt, or noticed.
   • Extremely small or fine: Refers to a degree or amount that is minimal and escapes detection.

Usage

The word "imperceptible" is used to qualify changes, differences, movements, or qualities that are too subtle for human senses or awareness to detect. It often describes a process that happens so slowly or slightly that it seems to not be happening at all.

Examples

• The aging of the ancient tree was imperceptible from day to day.
• There was an imperceptible shift in his attitude after the meeting.
• The two shades of white were imperceptible to the naked eye.
• She gave an imperceptible shake of her head, warning me to stay silent.

Advanced Usage

• Imperceptible to: Used to specify who or what cannot perceive something.
  • The vibration was imperceptible to most people, but the sensitive equipment detected it.
• All but imperceptible: A phrase meaning "almost impossible to perceive."
  • The sound of her footsteps was all but imperceptible on the thick carpet.

Variants and Related Words

• Imperceptibly (adverb): In a way that cannot be perceived.
  • The sky imperceptibly changed from black to deep blue before dawn.
• Perceptible (adjective): The direct antonym, meaning able to be perceived.
  • There was a perceptible chill in the evening air.

Synonyms

• Undetectable: Not able to be discovered or identified.
• Invisible: Unable to be seen.
• Inaudible: Unable to be heard.
• Impalpable: Unable to be felt by touch; intangible.
• Subtle: So delicate or precise as to be difficult to analyze or describe.

Antonyms

• Perceptible: Able to be seen, heard, or noticed.
• Noticeable: Easily seen or detected; clear or apparent.
• Obvious: Easily perceived or understood; clear.
• Conspicuous: Standing out so as to be clearly visible.

Related Phrases and Idioms

• By imperceptible degrees: Happening so gradually that each individual step of change cannot be noticed.
  • The seasons change by imperceptible degrees.

Học thuật

Adjective

1. impossible or difficult to perceive by the mind or senses
   • an imperceptible drop in temperature
   • an imperceptible nod
   • color is unperceivable to the touch

Từ đồng nghĩa

• unperceivable