| | # {{idiomatic}} Inclined to act or enjoy things that one would expect from someone younger, especially children or young adults. | | # {{idiomatic}} Inclined to act or enjoy things that one would expect from someone younger, especially children or young adults. |
| − | #: ''With his office cluttered with various cartoon character paraphernalia, Mr. Jones was considered quite young at heart by his co-workers.'' | + | #: ''With his office cluttered with various cartoon character paraphernalia, Mr. Jones was considered quite <b>young at heart</b> by his co-workers.'' |
