invisible
Translation
invisible, unseen
Examples
Air is invisible to the naked eye.
Air is invisible to the naked eye.
She felt invisible in the large crowd.
She felt invisible in the large crowd.
Grammar Patterns
invisible ((to sb./sth.)) that cannot be seen Air is invisible to the naked eye.
Similar Words
Synonyms: unseen, unnoticeable; Antonyms: visible, conspicuous
Etymology
From the prefix 'in-' (not) + 'visible' (able to be seen).
Memory Tips
Break it down: 'in-' means 'not' and 'visible' means 'see-able'. So, 'not see-able'.