waitara
1. (noun) project or scheme of a fanciful or difficult nature, difficult task, pipedream.
I āhua toru rau nei te tokomaha o ngā tāngata i puta ake ki te Whare Pāremata, kia reira kite ā-kanohi ai i tēnei waitara nui e tukuna ana kia rere (HM 1/1995:8). / About three hundred people arrived at the Parliament Building to witness the launch of this project.