FUN

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Across
  1. 3. achieving maximum productivity with minimum wasted effort or expense.
  2. 4. clearly visible or understood; obvious
  3. 5. relaxed and unconcerned.
  4. 7. easily persuaded to believe something; credulous.
  5. 8. worthy of attention or notice; remarkable.
Down
  1. 1. of or according to the rules of logic or formal argument.
  2. 2. inspiring fear or respect through being impressively large, powerful, intense, or capable.
  3. 3. lacking restraint in spending money or using resources.
  4. 6. treating serious issues with deliberately inappropriate humor; flippant.