• (a.) Obtaining or deserving thanks; thankworthy. • (a.) Impressed with a sense of kindness received, and ready to acknowledge it; grateful. Found on http://thinkexist.com/dictionary/meaning/thankful/
Thank'ful adjective [ Anglo-Saxon þancfull .] 1. Obtaining or deserving thanks; thankworthy. [ R.] « Ladies, look here; this is the thankful glass That mends the looker's eyes; this is the well That washes what it shows.» Herbert. 2. Impressed w... Found on http://www.encyclo.co.uk/webster/T/37