Timely

adj.capable, hopefulprofessional

What it means

Occurring at a moment when it is especially useful or appropriate.

Reach for it when praising help, information, or action whose timing increased its value

A timely warning gave residents two hours to move their cars from the floodplain.

playful
just in time
when narrow avoidance of delay suits an informal account
not when The phrase implies a near miss and is wrong for calm advance planning.
everyday
punctual
when meeting an agreed clock time matters
not when Punctual does not mean the action was useful or appropriately scheduled.
everyday
well-timed
when exact placement in time is the achievement
not when Well-timed can imply strategy or comedy and says less about practical usefulness.
warm
welcome
when the recipient's relief or pleasure is central
not when Welcome help can be late, while timely specifically praises when it arrived.
professional
prompt
when speed after a need appears matters
not when Prompt action can still come at an unhelpful moment or before enough facts are known.
professional
relevant
when fit to the current issue matters more than clock time
not when Relevant information may arrive too late to be useful.
formal
opportune
when circumstances make the moment advantageous
not when Opportune can sound self-interested rather than helpful.
literary
seasonable
when suitability to a season or occasion is meant
not when Seasonable is rare and often concerns weather or agriculture.

timely reminder
A timely reminder prevented the permit from expiring during the holiday.
timely intervention
The timely intervention stopped a minor disagreement from becoming personal.
timely response
A timely response told the family what was known before speculation spread.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.