3 letters:
big,
top,
non
4 letters:
main,
cost,
foul
5 letters:
major,
worst,
heavy,
large,
gross,
local,
toxic,
chief,
scale,
worse,
prime,
dirty
6 letters:
unseen
7 letters:
biggest,
largest,
private,
serious,
current,
alleged,
smaller,
leading,
illegal,
heavier,
visible,
thermal
8 letters:
greatest,
upstream,
heaviest,
multiple,
flagrant,
historic,
nonpoint
9 letters:
corporate,
potential,
municipal,
notorious,
primitive,
principal,
dangerous,
egregious,
regulated,
suspected
10 letters:
industrial,
individual,
stationary,
persistent
11 letters:
significant
12 letters:
recalcitrant
13 letters:
environmental,
grandfathered
Commonly used words are shown in bold. Rare words are dimmed. Click on a word above to view its definition.
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