1. (a.) Consistently on time; acting in a timely manner\.

2. (a.) Observant of nice points; punctilious; precise.

3. (a.) Appearing or done at, or adhering exactly to, a regular or an appointed time; precise; prompt; as, a punctual man; a punctual payment.

accurate active alert apt attentive careful close compliant conforming conscientious conscionable constant correct critical decisive delicate demanding detailed devoted devout duteous dutiful exact exacting exigent expeditious exquisite faithful fastidious fine finical finicking finicky fussy heedful immediate instant instantaneous loyal meticulous mindful minute narrow nice observant on the dot on time overconscientious overscrupulous painstaking particular practicing precise precisianistic precisionistic prompt punctilious quick ready refined regardful religious rigid rigorous scrupulous scrutinizing speedy strict subtle summary swift tender-conscienced timely TRUE