Careful, diligent, or attentive to small details; used as 'こまめな' or adverbially 'こまめに' to mean frequently/regularly doing small tasks.
彼女はこまめにメールをチェックするので、返信が早い。
She checks her email frequently, so her replies are quick.
観葉植物はこまめな水やりが必要だ。
Houseplants need frequent/careful watering.
荷造りはこまめに小分けしてやると楽になる。
Packing becomes easier if you do it little by little and diligently.
こまめな点検が安全運転の基本だ。
Regular/checking attentively is the basis of safe driving.