The phrase "perennial enemy" is grammatically correct and can be used in written English.
It refers to an enemy or opponent that has existed or persisted for a long time, perhaps even recurring or appearing regularly. Example: After years of conflict, it seemed that the two countries had finally made peace. However, their border disputes remained a perennial enemy, causing tension and occasional skirmishes.
But erosion is a perennial enemy, and efforts to rebuff it, continual.
It went to war more recently (in 1979) with China, a perennial enemy over the last millennium, and the authorities still seem more suspicious of their northern neighbours and fellow communists than of anyone else.
Will tradition now smother modernity?In this section Oh, what a lovely ally A winter thaw One hour with Mr Bush Ambitions of the middle class Reprints Related items Kashmir: A winter thawOct 17th 2002India, Pakistan's perennial enemy, is also worried.
At the height of the American concern, President Bush called on Robert M. Gates, a former longtime C.I.A. official who was then serving in the White House as the deputy national-security adviser, to fly on his behalf to Islamabad and New Delhi and negotiate a stand-down between the two perennial enemies.
The ego, which is the perennial spiritual enemy, is not just an individual entity.
Doers and doings in business, entertainment and technology: Hewlett-Packard's new Chief Executive Mark Hurd Mark Hurd scored a big coup today by stealing away a senior executive from arch enemy and perennial thorn-in-the-side Dell.
Like the Soviet show trials of old, the May 6th prosecution serves as a kind of theatrical ritual in which demonstrating the wickedness of the crime is just as important as proving guilt.Beyond that, the case gives the state a chance to relate the anti-Putin protesters to the perennial notion of murky enemies abroad who wish Russia harm.
What a rousing, heartwarming spectacle of adventure and intensity in the gloaming of the championship this was, with nothing at stake but pride and the perennial lust to clobber the old enemy.
"Especially they're not worthy victims if they are killed by our allies as opposed to by our enemies and that is a perennial problem".
Moreover, cultivating annual cropland with herbaceous, perennial habitats could affect the abundance of natural enemies in existing crops and alter the suitability of entire landscapes for these beneficial taxa.
The strongest weapons available to our enemies are ideas of religious supremacy and perennial confrontation, backed with logistical networks, and repressive political conditions that help strengthen their narrative and network.
