The antonyms for the word "welltimed" include poorly-timed, ill-timed, untimely, inappropriate, and out of sync. These terms refer to actions, events, or decisions that are carried out at the wrong time, causing negative consequences or missing out on opportunities. A poorly-timed decision can cost a person their career, relationship or business. Ill-timed jokes can cause offense and untimely financial investments can result in significant losses. Therefore, it is important to use discretion and careful judgment when making decisions to avoid mistakes related to timing. By using antonyms of "welltimed" as a guide, people can better understand how to avoid missteps and make more informed decisions at the right time.