nugatory /nūˈgə-tə-ri/

1. Trifling
2. Worthless
3. Inoperative
4. Unavailing
5. Futile

nuˈgatoriness noun

• rub off on to
• rub of the green
• rub one's hands
• rub on the green
• rub out
• rubout
• rubouts
• rubric
• rubrical
• rubrically
• rubricate
• rubricated
• rubricates
• rubricating
• rubrication
• rubrications
• rubricator
• rubricators
• rubrician
• rubricians
• rubrics
• rubs
• rub salt in a wound
• rub shoulders
• rub someone's nose in it