punc·tu·al 
(pŭngkch-əl)
(pŭngkch-əl)adj.
1. Acting or arriving exactly at the time appointed; prompt.
2. Paid or accomplished at or by the appointed time.
3. Precise; exact.
4. Confined to or having the nature of a point in space.
5. Linguistics Of, related to, or being the verbal aspect that expresses momentary action or action considered as having no temporal duration.
[Middle English, sharp-pointed, from Medieval Latin pūnctuālis, from Latin pūnctum, point, from neuter past participle of pungere, to prick; see PUNGENT.]
punc′tu·ali·ty (-ălĭ-tē), punctu·al·ness (-əl-nĭs) n.
punctu·al·ly adv.
- inveterately
- inveterateness
- inviability
- inviable
- invidious
- invidiously
- in view of
- invigorate
- invigoratingly
- invigoration
- invigorator
- invincibility
- invincible
- invincibleness
- invincibly
- inviolability
- inviolable
- inviolableness
- inviolably
- inviolacy
- inviolate
- inviolately
- inviolateness
- in virtue of
- inviscid