Is Anti-aircraft A Word?

Is Anti-aircraft A Word? Lots of prefixes have special rules and, in many cases, the authorities disagree on what those rules should be. Take “anti,” for example. “Antiaircraft” would be almost unintelligible without a hyphen: anti-aircraft. … In that style, you don’t use a hyphen. Is anti-aircraft hyphenated? Lots of prefixes have special rules and,