• freat australian bight,
• vreat australian bight,
• breat australian bight,
• hreat australian bight,
• yreat australian bight,
• treat australian bight,
• geeat australian bight,
• gdeat australian bight,
• gfeat australian bight,
• gteat australian bight,
• g5eat australian bight,
• g4eat australian bight,
• grwat australian bight,
• grsat australian bight,
• grdat australian bight,
• grrat australian bight,
• gr4at australian bight,
• gr3at australian bight,
• grezt australian bight,
• grest australian bight

The adjective form of "Great Australian Bight" would be "Great Australian Bightish" or "Bight-like". However, it's worth mentioning that this may not be a commonly used adjective form, as "Great Australian Bight" is primarily a proper noun referring to a geographical feature.