You know what you feel about your wife. Getting it onto a few lines of a card is the hard part. This guide gives you more than 180 original anniversary wishes for your wife, grouped by tone and situation, so you can find one that sounds like you and make it your own in a minute.
Quick answer: A good anniversary card message for a wife is short, specific and sincere. Mention one real thing you’re grateful for, add a feeling or a hope for the year ahead, and close warmly. Two to five sentences is plenty. Pick a message below, then swap in one detail only the two of you would know.