conspicuous by (someone's) absence

Translations
заметный из-за отсутствия (кого-то)
The CEO was conspicuous by his absence at the meeting.
Генеральный директор был заметен из-за своего отсутствия на встрече.
Definitions
A phrase used to indicate that someone is noticeably missing from a situation or event where their presence was expected or would have been significant.
Words
conspicuous

adjective
заметный
by

preposition
из за
someone

pronoun
кто то
is

functional word
есть
absence

noun
отсутствие