happyI'm much happier in my new job.
in a good moodYou're in a good mood this morning!
pleasedHe was pleased that she had come back.
gladI was so glad to see her.
delightedThey are delighted with their new car.
ecstaticThe new president was greeted by an ecstatic crowd.
elatedWe were elated at the news.
on cloud nineinformalI was on cloud nine after being offered the job.
contentedShe's a very contented little baby.