Curtain-climbers is a slang term used to describe children who are likely to climb curtains and other household items. However, there are several other terms that can be used to describe such children, including "adventurous," "energetic," "mischievous," "playful," "spunky," and "fearless." These synonyms can help parents and caregivers communicate the behaviors of children in a more positive and descriptive way. Instead of using a negative label like curtain-climber, parents can use the more positive adjective "adventurous" to describe their child's exploration and learning process. Using positive synonyms can help to build a more uplifting and encouraging environment for the child and support their healthy development.