genuine, authentic; first-class
"... the record-breaking Sri Lankan [cricket player] has always shown himself a pukka gent...." William Langley, The Telegraph, July 24, 2010
About the word:
Chef Jamie Oliver rejuvenated pukka with his BBC series Pukka Tukka. That's fitting, since pukka comes from the Hindi and Urdu words for "cooked," "ripe," and "solid."
Want more? See Favorite British Words, Vol. 2