adverb
- in a manner that receives no thanks or appreciation; without gratitude being shown
Examples
- She worked thanklessly for years without any recognition.
- The volunteers served thanklessly at the shelter every weekend.
- He toiled thanklessly in the background while others took credit.
- The teacher graded papers thanklessly late into the night.
- They donated money thanklessly, never seeking public acknowledgment.
- The janitor cleaned the building thanklessly, rarely noticed by anyone.