Here are some fun and useful vocabulary words for kids:

Adorable: Very cute or lovable.

Brilliant: Exceptionally smart or talented.

Cheerful: Full of happiness and joy.

Delicious: Tasty and enjoyable to eat.

Enchanting: Charming and magical.

Fascinating: Extremely interesting or captivating.

Gigantic: Extremely large or huge.

Harmonious: Pleasantly combining different elements.

Incredible: Unbelievable or amazing.

Jubilant: Extremely joyful and triumphant.

Keen: Eager and enthusiastic.

Luminous: Glowing or emitting light.

Majestic: Grand and impressive in appearance.

Nurturing: Caring and supportive.

Optimistic: Having a positive outlook.

Playful: Full of fun and activity.

Quizzical: Expressing curiosity or puzzlement.

Radiant: Bright and shining.

Spectacular: Impressive and breathtaking.

Tranquil: Calm and peaceful.

Encourage kids to use these words in sentences or incorporate them into their daily conversations to enhance their vocabulary skills.