| At times she's a gangling, anti-social adolescent, and at others a snobbish know-it-all, but she's always riveting. |
| Yes, he's a smarmy know-it-all with the personality of a hall monitor, the kind of guy everyone hides from at a Christmas party. |
| In other words, he comes across as a vainglorious know-it-all, absolutely convinced that he's right about everything. |
| I'm this zitty 13 year old with B.O., an insufferable know-it-all attitude and greasy hair. |
| I didn't like her at first because she seemed to be a know-it-all, she rolled her eyes at me a lot whenever I was trying to be funny. |
| It was good to share some of my learning with the group, but I was also conscious of not appearing like a know-it-all. |
