The phrase "already robust" is correct and usable in written English.
It can be used to describe something that is strong, well-developed, or effective at a particular point in time, often implying that it has reached this state earlier than expected.
Example: "The software's performance is already robust, making it suitable for large-scale applications."
Alternatives: "already strong" or "already well-established".
He says the lottery's sales were already robust.
"We firmly believe that competition is already robust in Pennsylvania".
Their election rules, already robust in 2008, were strengthened after that year's fight.
Its limb bones, although small, are already robust; its brow region, however, is only slightly developed.
In Indiana, the next major battleground, Mr. Obama is strengthening an already robust television advertising campaign and sending an army of fresh workers there in the coming days.
But retail banking, in which Wachovia excels, remains the soul of Wachovia's franchise and the SouthTrust purchase is clearly geared toward expanding an already robust retail business.
California voters were the first to outlaw affirmative action, passing Proposition 209 in 1996, and in the following years, the University of California system expanded an already-robust set of programs to identify and nurture promising low-income students.
In a release Disney says that by buying Playdom it "will strengthen its already-robust digital gaming portfolio, acquire a first-rate management team and provide consumers new ways to interact with the company on popular social networks like Facebook and MySpace".
"They can help us take our already-robust marketing suite for app developers to an entirely new level".
In the late 1960s, the mushrooming costs of the Vietnam War and the Great Society programs in an already-robust economy created a tremendous gap between supply and demand in many areas.
By acquiring Playdom, Disney will strengthen its already-robust digital gaming portfolio, acquire a first-rate management team and provide consumers new ways to interact with the company on popular social networks like Facebook and MySpace.
