Postwar England was gray, genteel and ultracareful but not so the flamboyant Mr. Tynan, who had the indispensable critical gift of being able to communicate enthusiasm.
WSJ: Sightings: The Ungenerous Brilliance of Kenneth Tynan
ultracareful:
ultra- +? careful
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。