Thankless

Definition:

• (a.) Not acknowledging favors; not expressing thankfulness; unthankful; ungrateful.
• (a.) Not obtaining or deserving thanks; unacceptable; as, a thankless task.

Compare thankless with other words:

thankless vs. thanklessness

thankless vs. ungrateful

rewarded vs. thankless

appreciated vs. thankless

thankful vs. thankless

stab vs. thankless