This is the 870th most frequent Icelandic word.
ánægður
"Ánægður" means "happy" or "satisfied."
The word 'ánægður' means 'pleased' or 'satisfied' in this context and agrees in gender and number with the speaker.
Ég er mjög ánægður með árangurinn.
I am very pleased with the results.
Here, 'ánægð' means 'happy' and is used in its feminine singular form, agreeing with the subject 'hún'.
Hún virtist vera ánægð þegar hún fékk gjöf.
She seemed to be happy when she received the gift.
In this sentence, 'ánægð' refers to 'satisfied' and agrees in plural with the subject 'við' as the predicate adjective.