enlightening
adjective uk/ɪnˈlaɪ.tən.ɪŋ/ us/ɪnˈlaɪ.t̬ən.ɪŋ/
启迪的；使人增进知识的；使人获得教益的
giving you more information and understanding of something
That was a very enlightening programme. 那个节目很有启发性。
The instruction manual that came with my new computer wasn't very enlightening about how to operate it. 我新买的电脑所附的使用手册不是很有帮助，看了还是不懂怎样操作。
Synonyms: edifying illuminating