infinitesimal

adjective/ˌɪnfɪnɪˈtɛsɪməl/

Frequency rank: #18,217 most common English word

Meaning

Extremely small; too tiny to be measured or noticed.

Illustration for the English word “infinitesimal”

Example sentence

The scientist measured infinitesimal traces of the chemical in the water sample.

Synonyms & related words

Practice this word in the quiz

More words in ranks 18,201–18,300