undetectable

word

Definition

Impossible or extremely difficult to find, notice, or sense; something that cannot be detected.

Usage & Nuances

Primarily used in scientific, medical, or technical contexts—e.g., 'undetectable virus levels.' Implies complete invisibility to the senses or instruments. Not commonly used for people or emotions. Collocations: 'almost undetectable,' 'become undetectable.'

Example Sentences

The sound was so quiet it was undetectable to human ears.

basic

The virus became undetectable after the treatment.

basic

There was an undetectable leak in the pipe.

basic

Her perfume was so light it was almost undetectable.

natural

With the new paint, the scratch became undetectable.

natural

These chemicals leave undetectable traces, making them hard to find.

natural