suddengesture
nounUK /ˈsʌdən ˈdʒɛstʃə/
US /ˈsʌdən ˈdʒɛstʃər/
A quick move you make without planning it first.
He gave a suddengesture with his hand to say hello.
OTHER MEANINGS
2. A fast hand or body movement that shows a feeling.
Her suddengesture of surprise made everyone laugh.
3. An unplanned sign that tells someone what to do.
The coach's suddengesture told the team to run.
4. A quick motion made without thinking.
With a suddengesture, she caught the falling cup.