Challenging Word Search Printable - 6 Hard and Big Puzzles (Free PDF)

6 hard word searches to print

Each puzzle has its own PDF: the grid and the word list on page 1, the solution on page 2. Start with the 18 x 18 grids, then move up to the big 25 x 25 puzzle.

Animals word search - 18 x 18 grid, 24 words
Food word search - 18 x 18 grid, 24 words
Sports word search - 18 x 18 grid, 24 words
Countries word search - 20 x 20 grid, 30 words
Science word search - 20 x 20 grid, 30 words
Nature word search - 25 x 25 grid, 40 words

1. Animals word search (18 x 18)

24 words hidden in all 8 directions, including backwards.

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ALLIGATOR - ARMADILLO - BUTTERFLY - CHAMELEON - CHIMPANZEE - CROCODILE - DOLPHIN - ELEPHANT - FLAMINGO - GIRAFFE - HEDGEHOG - HIPPOPOTAMUS - JELLYFISH - KANGAROO - LEOPARD - MONGOOSE - OCTOPUS - ORANGUTAN - PELICAN - PORCUPINE - RHINOCEROS - SALAMANDER - SCORPION - WOODPECKER

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2. Food word search (18 x 18)

24 words hidden in all 8 directions, including backwards.

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ASPARAGUS - AVOCADO - BLUEBERRY - BROCCOLI - CINNAMON - CROISSANT - CUCUMBER - DUMPLING - EGGPLANT - HAZELNUT - LASAGNA - MUSHROOM - MUSTARD - OMELETTE - PANCAKE - PINEAPPLE - PISTACHIO - PUMPKIN - RASPBERRY - SANDWICH - SPAGHETTI - SPINACH - TORTILLA - ZUCCHINI

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3. Sports word search (18 x 18)

24 words hidden in all 8 directions, including backwards.

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ARCHERY - BADMINTON - BASEBALL - BASKETBALL - BOWLING - CLIMBING - CRICKET - CYCLING - FENCING - GYMNASTICS - HANDBALL - HOCKEY - KARATE - MARATHON - ROWING - SAILING - SKATING - SNOWBOARD - SOFTBALL - SURFING - SWIMMING - TRIATHLON - VOLLEYBALL - WRESTLING

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4. Countries word search (20 x 20)

30 words hidden in all 8 directions, including backwards.

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ARGENTINA - AUSTRALIA - BANGLADESH - BELGIUM - BRAZIL - CAMBODIA - CANADA - COLOMBIA - DENMARK - ECUADOR - ETHIOPIA - FINLAND - GERMANY - HUNGARY - ICELAND - INDONESIA - JAMAICA - KAZAKHSTAN - MADAGASCAR - MALAYSIA - MOROCCO - NORWAY - PAKISTAN - PHILIPPINES - PORTUGAL - SINGAPORE - SWITZERLAND - THAILAND - URUGUAY - VIETNAM

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5. Science word search (20 x 20)

30 words hidden in all 8 directions, including backwards.

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ASTEROID - BACTERIA - CHEMISTRY - CHROMOSOME - ECOSYSTEM - ELECTRON - EVOLUTION - EXPERIMENT - FRICTION - GALAXY - GRAVITY - HYDROGEN - HYPOTHESIS - LABORATORY - MAGNETISM - MICROSCOPE - MOLECULE - NEUTRON - NUCLEUS - ORGANISM - OXYGEN - PARTICLE - PENDULUM - PHYSICS - PROTEIN - SATELLITE - TELESCOPE - THEORY - VELOCITY - WAVELENGTH

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6. Nature word search (25 x 25)

40 words hidden in all 8 directions, including backwards.

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AVALANCHE - BLOSSOM - BOULDER - CANYON - CAVERN - DESERT - DROUGHT - EARTHQUAKE - ESTUARY - FOREST - GEYSER - GLACIER - GRASSLAND - HORIZON - HURRICANE - ICEBERG - ISLAND - JUNGLE - LAGOON - LIGHTNING - MEADOW - MOUNTAIN - PENINSULA - PRAIRIE - RAINBOW - RAVINE - SAVANNA - SEASHORE - SNOWFLAKE - STREAM - SUNRISE - THUNDER - TORNADO - TUNDRA - VALLEY - VOLCANO - WATERFALL - WETLAND - WILDERNESS - WOODLAND

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Big word search printable: 625 letters, 40 words

Looking for a big word search? Puzzle 6, Nature, is a 25 x 25 grid: 625 letters and 40 words to find, from AVALANCHE to WOODLAND. It fits on a single US Letter page.

Go to the big Nature puzzle or download the complete pack to print all 6 puzzles at once.

What makes a word search challenging

The directions. An easy puzzle hides words across and down only. A hard one also uses diagonals and backwards words, which gives 8 directions to check.
The grid size. A bigger grid has more letters around each word, so each word takes longer to spot.
The number of words. More words to find means a longer puzzle: 24 to 40 words here.

Tips to solve a hard word search

Start with the longest words: they have fewer possible places in the grid.
Look for uncommon letters such as Q, Z, X, J or K, then check the letters around them.
Look for double letters, as in GIRAFFE or BROCCOLI: pairs are easier to spot than single letters.
Read each row from right to left as well, and each column from bottom to top, to catch backwards words.
Cross off each word in the list as soon as you find it.

Make your own hard word search

Want a challenging puzzle with your own words? The free word search maker creates one from your list: up to 20 words, a grid up to 18 x 18, and a Hard level that uses all 8 directions. You can print it or download a PDF with the solution.

Want to publish your own puzzle book?

LogikLand builds complete word search books for Amazon KDP: themed word categories, 4 difficulty levels, grids up to 25 x 25, a solutions section, and print-ready pages in 8.5 x 11 or 6 x 9 inches, exported as PDF or editable PPTX.

Word search book generator See plans and pricing

Challenging word search printable: frequently asked questions

Are these challenging word searches free to print?

Yes. The 6 puzzles on this page are free and need no account. Each PDF carries a small LogikLand footer and is for personal use.

Do the PDFs include the solutions?

Yes. Each PDF has the puzzle on page 1 and the solution on page 2. The complete pack has 12 pages: the 6 puzzles first, then the 6 solutions, so you can print the puzzles without seeing the answers.

What makes these word searches hard?

The words are hidden in all 8 directions: across, down, diagonally, and backwards in each of these directions. The grids are large, from 18 x 18 to 25 x 25 letters, and each puzzle has 24 to 40 words to find. Each word appears only once in its grid.

Which puzzle is the biggest?

Puzzle 6, Nature, is the big one: a 25 x 25 grid, which is 625 letters, with 40 words to find. Puzzles 4 and 5 use a 20 x 20 grid with 30 words, and puzzles 1 to 3 use an 18 x 18 grid with 24 words.

Which paper size should I use?

The PDFs are made for US Letter paper (8.5 x 11 inches). To print on A4 paper, choose the "Fit to page" option in your print window.

Can I make a hard word search with my own words?

Yes. The free LogikLand word search maker lets you type up to 20 words, choose a grid up to 18 x 18 and select the Hard level, which uses all 8 directions. You can then download your puzzle as a PDF with its solution.

Can I sell or republish these puzzles?

No, the free puzzles on this page are for personal use. To publish and sell your own puzzle books, on Amazon KDP for example, commercial rights come with the LogikLand PRO and EXPERT plans.