Here are some English equivalents depending on the context:
* Good
* Nice
* Pleasant
* Lovely
* Beautiful
* Wonderful
* Delightful
For example:
* "Chennaya aal" (good person) translates to "Nice person"
* "Chennaya aazhakam" (good morning) translates to "Good morning"
* "Chennaya bhakshanam" (good food) translates to "Delicious food"
The best English word to use will depend on the specific context of the sentence.