The phrase "ambitious reason" is correct and usable in written English.
It can be used to describe a reason that is driven by strong aspirations or goals, often implying a desire for significant achievement.
Example: "Her ambitious reason for pursuing a higher degree was to become a leader in her field and make a lasting impact."
Alternatives: "aspirational motive" or "driven purpose".
On a typical day last week we had the menacingly mendacious Alexander Boris Johnsonon being taken far more seriously than he should – what do you make of a man who tells his close friends we must stay in the European Union and then, for nakedly ambitious reasons, goes back on his word?
While the recession has seen the number of couples living apart for economic reasons rise, some working women have opted to live and work away from their families during the week for much more ambitious reasons.
It's hard to imagine what further reason ambitious executives would need to jump at the job.
Throughout American history there has almost always been at least one central economic narrative that gave the ambitious or unsatisfied reason to pack up and seek their fortune elsewhere.
This is a world in which omens -- especially the doings of giant eagles -- must be taken seriously, since fate lifts up and then crushes the ambitious without apparent reason.
"This year, landlords are not as ambitious for two reasons.
The one who went through job training and earned more might have been more ambitious and for that reason would have earned more without the job training.
In a 2005 interview in The New York Times, Ms. Black, the youngest of three children, said: "A lot of the studies would say generally the oldest child is the most ambitious, but for some reason I sort of got those genes".
For this reason, some ambitious employees went to language institutes or grouped themselves into a class and hired an English teacher to help them with their English.
It's ambitious, but there's reason to believe the demand is there to help meet that goal.
