Active

adj.energetic, capableeveryday

What it means

Regularly taking part through action, movement, or practical involvement.

Reach for it when describing someone who participates rather than remaining on the sidelines

Sal remains active in the garden club by organizing its monthly seed exchange.

everyday
busy
a full schedule is the fact you need to convey
not when Busyness may produce little useful participation or progress.
everyday
energetic
visible vigor and plentiful energy are the main impression
not when A person can participate actively in a calm, measured way.
everyday
involved
ongoing participation in a group or issue is meant
not when It can imply association without the initiative conveyed by active.
warm
lively
animation and social brightness are what others notice
not when Lively describes manner or atmosphere, not sustained contribution.
professional
dynamic
initiative and changing energy make the person or team stand out
not when The word can sound inflated for ordinary, steady involvement.
professional
engaged
attention and meaningful involvement matter more than motion
not when Interest without concrete participation may be engaged but not active.
formal
participatory
a process gives people a direct role in decisions or work
not when Use it for structures and methods, not as a natural compliment in a card.
formal
vigorous
strong physical effort or forceful activity is intended
not when Intellectual or community involvement need not be physically vigorous.

active participant
Each active participant tested the route before the public walk.
active member
As an active member, Bea attends meetings and mentors newcomers.
remain active
After retiring, Malik chose to remain active in the local orchestra.

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