1. short-sighted or lacking foresight.   Hint First letter clue   2. pertaining to the sense of touch.   First letter clue   3. pertaining to earthquakes.   First letter clue   4. motionless or unchanging.   First letter clue   5. allowing light to pass freely; clearly apparent.   First letter clue   6. (of gas or air) of less density.   First letter clue   7. harmful or poisonous.   First letter clue