displaying excellent form, esp. in performing a sport
Word origin
[1720–30; form + -ful]This word is first recorded in the period 1720–30. Other words that entered Englishat around the same time include: berm, cordon bleu, deadwood, personify, syllabic-ful is a suffix meaning “full of,” “characterized by” (shameful; beautiful; careful; thoughtful); “tending to,” “able to” (wakeful; harmful); or “as much as will fill” (spoonful)