Grateful (adjective)
Appreciative; thankful.
“I’m grateful that you helped me out.”
“I’m grateful to you for helping me out.”
Grateful (adjective)
Pleasing, welcome.
Thankful (adjective)
Showing appreciation or gratitude.
“I’m thankful that you helped me out today. How can I ever repay you?”
Thankful (adjective)
Obtaining or deserving thanks; thankworthy.
Wiktionary
Grateful (adjective)
feeling or showing an appreciation for something done or received
“I’m grateful to you for all your help”
“she gave him a grateful smile”
Grateful (adjective)
received or experienced with gratitude; welcome
“the grateful shade”
Oxford Dictionary