1. likely to be remembered; important; significant   historic   historical   2. lacking respect   irrelevant   irreverent   3. to make less severe or less intense   mitigate   militate   4. natural ability or talent   flair   flare   5. an embarrassing mistake; a blunder   gaffe   gaff   6. concentrated; achieving a lot in a short time   intense   intensive   7. unbelievable   incredulous   incredible