濃(こ)い目(め)

こいめ
noun
on the strong side; slightly dark/rich
descriptive
1. on the strong/dark/rich side; somewhat concentrated
Describes something that is slightly stronger, darker, or richer than standard — typically flavor, color, or makeup. The suffix 目(め) indicates 'leaning toward' or 'on the ... side.'
コーヒーは濃(こ)い目(め)が好(す)きだ。
I like my coffee on the strong side.
味付(あじつ)けを濃(こ)い目(め)にしてください。
Please make the seasoning a bit stronger.
今日(きょう)は濃(こ)い目(め)のメイクで出(で)かけることにした。
I decided to go out with slightly heavier makeup today.

The suffix め (目) means 'somewhat' or 'on the ... side' and normally follows the adjective stem: 薄(うす)め (on the light/thin side), 甘(あま)め (on the sweet side), 大(おお)きめ (on the large side). Because the stem 濃(こ) is a single syllable, the full form 濃(こ)い + め is used (rarely 濃(こ)め). Usually written 濃(こ)いめ, with め in kana. Commonly used when ordering food or drinks to specify preference. Opposite: 薄(うす)め (on the weak/light side).