half the man (someone) used to be

Translations
(кто-то) стал гораздо хуже
After the accident, he was half the man he used to be and could no longer perform his job.
После несчастного случая он стал гораздо хуже и больше не мог выполнять свою работу.
Definitions
A phrase used to describe someone who has lost strength, ability, confidence, or vitality compared to how they were in the past. It often implies that the person is now weaker, less capable, or diminished in some significant way.
Words
half

noun
половина
the

article or possessive pronoun
тот
man

noun
мужчина
someone

pronoun
кто-то
used

functional word
раньше
to

preposition
к
be

verb
быть