The term "are dilatory" refers to a slow or procrastinating behavior. Its antonyms include adjectives such as prompt, punctual, timely, quick, and expedient. Someone who is prompt acts without delay or hesitation, completing tasks efficiently and on schedule. Punctual people are always on time, never late for their appointments. People who are timely are able to meet deadlines and deliver work within specific time frames. A quick person is swift and efficient, while someone who is expedient is able to accomplish tasks quickly and efficiently. All of these words are opposite in definition to the concept of being dilatory, which is associated with delay and inaction.