Words / C1

imp-uh-SEPT-uh-bl/ˌɪmpəˈseptəbl/

Imperceptible means too slight, gradual, or faint to be noticed: an imperceptible change, an imperceptible difference. Gradual (already in the dictionary) can still be noticed; undetectable is the lab twin. Rounding “just a little” is still a methods fiction.

Meaning

Too slight, gradual, or faint to be noticed.

Examples

• “An imperceptible rounding in the abstract is still a methods fiction.”
• “Undetectable is the lab twin. Tiny is everyday. A little is talk. A rounding rule is a codebook. Write the rule; do not hide the tenth.”

Good to know

Too small to notice. Close: undetectable. “Just a little” ≠ a methods rule.

Near in meaning

undetectable, faint, minute

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