ratite /ratˈīt/ (ornithology)

1. Having a keel-less breastbone
2. Of the Ratitae /rä-tīˈtē/, flightless birds, such as the ostrich, rhea, emu, kiwi, etc

• unstaying
• unsteadfast
• unsteadfastly
• unsteadfastness
• unsteadfastnesses
• unsteadied
• unsteadier
• unsteadies
• unsteadiest
• unsteadily
• unsteadiness
• unsteadinesses
• unsteady
• unsteadying
• unsteel
• unsteeled
• unsteeling
• unsteels
• unstep
• unstepped
• unstepping
• unsteps
• unstercorated
• unsterile
• unsterilised