For the puzzle:
* Image search: This is a direct opposite, focusing on visual patterns instead of words.
* Number search: Similar to a word search, but with numbers instead of letters.
* Crossword: While not strictly an antonym, it's a different type of word puzzle focusing on clues and intersections.
* Anagram: This is a word puzzle, but involves rearranging letters instead of finding words in a grid.
* Scrambled letters: A general term for a puzzle where you need to unscramble letters to form words.
For the action of searching:
* Word creation: Instead of finding existing words, you're creating new ones.
* Word avoidance: This is a playful concept where you try to *not* find certain words.
Ultimately, the best "antonym" depends on the specific meaning and context you're trying to convey.