slightsmile

noun
UK /ˈslaɪt.smaɪl/
US /ˈslaɪt.smaɪl/

A slightsmile is a very small smile.

She gave me a slightsmile when I said hello.


OTHER MEANINGS

2. A smile that shows only a little happiness.

He hid his joy behind a slightsmile.

3. A polite but not very warm smile.

The teacher's slightsmile told us to be quiet.

4. A quick smile that lasts only a moment.

A slightsmile crossed her face and then was gone.