The phrase "a slightly more aggressive" is correct and usable in written English.
It can be used when comparing levels of aggression in behavior, tone, or approach, indicating a small increase in intensity.
Example: "In this negotiation, we need to adopt a slightly more aggressive stance to secure a better deal."
Alternatives: "a bit more assertive" or "somewhat more forceful."
She mines similar territory to her brother, though in a slightly more aggressive fashion.
"We expect to see other lenders taking a slightly more aggressive stance".
The shape of the line is "blunt at the ends, to get a slightly more aggressive, punk feeling".
A slightly more aggressive mix of 70percentt stocks and 30percentt bonds surpassed the Ivies' results by an even greater margin.
I think retailers would take a slightly more aggressive approach if it hadn't already happened to some of their own-brand products.
It's a warmed-over Passat with a few trim changes that give it a slightly more aggressive appearance than the bland Passat variants currently in the Volkswagen stable.
Despite this information and the benefits of making the CLS a slightly more aggressive-looking car, with such styling elements as a belt line that rises as it heads toward the back of the vehicle we still don't have a satisfactory answer as to why Mercedes thinks it needs to add another sedan line (it has three already) to a cluttered market.
In fact, a new, slightly more aggressive strategy emerged a week before the attacks, but too late.
The jar was about to evolve, like a Pokemon, into a bigger, badder, slightly more aggressive version of itself.
A few starters needed slightly more aggressive seasoning, like duck rillette, which was overly dependent on the accompanying pickles and mustard to elevate the flavor.
Moreover, youngsters who develop a gaming habit can become slightly more aggressive — as measured by clashes with peers, for instance — at least over a period of a year or two.
