This is the 322nd most frequent Arabic word.
للغاية
"Extremely" or "very much."
The word 'للغاية' here is used as an adverb to emphasize the extent of the adjective 'delicious'.
هذا الطعام لذيذ للغاية.
This food is extremely delicious.
Here, 'للغاية' amplifies the adjective 'easy' to convey a very high degree of easiness.
كان الامتحان سهلاً للغاية.
The exam was extremely easy.
In this sentence, 'للغاية' acts to emphasize the speaker's high degree of pleasure.