'Thankful' definitions:

Definition of 'thankful'

(from WordNet)
adjective
Feeling or showing gratitude; "a grateful heart"; "grateful for the tree's shade"; "a thankful smile" [syn: grateful, thankful] [ant: thankless, ungrateful, unthankful]

Definition of 'Thankful'

From: GCIDE
  • Thankful \Thank"ful\, a. [AS. [thorn]ancfull.]
  • 1. Obtaining or deserving thanks; thankworthy. [R.] [1913 Webster]
  • Ladies, look here; this is the thankful glass That mends the looker's eyes; this is the well That washes what it shows. --Herbert. [1913 Webster]
  • 2. Impressed with a sense of kindness received, and ready to acknowledge it; grateful. [1913 Webster]
  • Be thankful unto him, and bless his name. --Ps. c. 4. [1913 Webster] -- {Thank"ful*ly}, adv. -- {Thank"ful*ness}, n. [1913 Webster]