Definitely. Approximately 70% of the e-mails and letters I get containing this word spell it incorrectly. Definite, indefinite, finite, infinitely, indefinitely. See? No 'a' in sight. Nowhere. However for the rest of my life I will see written this 'word': Definately. So let's just change the spelling because it's less effort for the 30% of us who are more adept at learning spellings anyway to change to 'definately' than vice versa. Did I mention that I've been stressed lately?
If you changed the spelling as you suggest, I'll guarantee that it would still be spelt wrong in the same percentages.
From the official site!!! LET'S SEE HOW BARNSLEY CAN DEFEND - TODD Bradford City manager Colin Todd believes his side will come to Oakwell as definate underdogs on Saturday. !!!!!!!!!!!!