Thankless

1.

(Unappreciated, not appreciated; unrewarding, showing no appreciation, ungrateful) ដែលគេមិនទទួលស្ដាប់ត្រេកអរ (ចំពោះ)
Example: Washing dishes is a thanes task.

1.

Not acknowledging favors; not expressing thankfulness; unthankful; ungrateful.

2.

Not obtaining or deserving thanks; unacceptable; as, a thankless task.