"markedly aggressive" is correct and usable in written English.
You can use it to describe someone's behavior or attitude that is characterized by aggressiveness or hostility. For example, "The teacher's demeanor was markedly aggressive toward the students."
Though both sides have been markedly aggressive in their attacks on each other, their positive messages have often failed to be reported by the press.
And like many women who stick their head above the parapet by challenging norms, she has faced a markedly aggressive response from a vocal minority online, and Rinaldi is quick to call out the double standards between men and women.
A subset of high grade NMIBCs contains HER2 amplification and is associated with markedly aggressive behavior [ 61].
There was one markedly aggressive tumour (20-mm depth of invasion and 11 positive lymph nodes with extracapsular spread) with notably reduced CYGB expression (⩽0.5 × normal) This tumour showed allelic imbalance at two markers close to CYGB on 17q25 (data not shown), thus offering a possible explanation for the reduced CYGB expression independent of promoter methylation.
His remarks yesterday were markedly more aggressive than they had been.
At Saturday's rally, Mr. Abhisit's speech was earthy and markedly more aggressive than his previous remarks.
Both Obama and McCain have denounced the Russian incursion into its neighbour's territory, although McCain's rhetoric was markedly more aggressive.
One of its main competitors for prime nesting grounds [15], [26] is the larger and markedly more aggressive northern goshawk (♂ 517 1170 g, ♀ 820 1509 g), which opportunistically feeds on birds and mammals [27].
In contrast, Asiatic black bears and sun bears are much more similar in most traits: both have curved claws for climbing, neither seems markedly more aggressive than the other, and both are forest-dwelling species.
Our analysis could theoretically underestimate true progression risk for non-atypical EH if the EH lesions that were treated with hysterectomy within 1 year (whom we excluded) were markedly more aggressive than those that were included in our analysis, but this seems unlikely.
Finally, the oral administration of 17-DMAG to severe combined immunodeficient (SCID) mice transplanted with lymphomatous cells bearing Lck proximal promoter-driven Tax transgene (Lck-Tax) cells markedly inhibited the aggressive infiltration of these Lck-Tax cells into multiple organs.
