IPA: /ʌnˈɡreɪtfəl/
KK: /ʌnˈɡreɪtfəl/
Not feeling or showing gratitude or appreciation for something that has been done for you.
He was ungrateful for all the help he received during his difficult times.
**Ungrateful** → It is formed from "un-" (meaning not) and "grateful" (from Latin *gratus*, meaning pleasing or thankful). The word "ungrateful" means not feeling or showing gratitude or thankfulness.
Think of 'not' ('un-') feeling 'thankful' ('gratus') — that's why ungrateful means lacking gratitude.