-kfəl adjective
( sometimes thankfuller sometimes thankfullest )
Etymology: Middle English, from Old English thancful thoughtful, contented, thankful, from thanc thought, pleasure, gratitude + -ful
1. : conscious of benefit received and kindly disposed toward the benefactor : grateful
a thankful heart
2. : expressive of thanks or gratitude
thankful service
3. : well pleased : glad
I was thankful they could not see my face, for I was blushing — Paul Roche
• thank·ful·ly -fəlē, -li adverb
• thank·ful·ness noun -es