Synonyms of the word 
LOW-KEYED → LOW-KEY - RESTRAINED - SUBDUED
low-keyed
- adj. Relaxed, unstressful, not pressured.
low-key
- adj. Restrained, subtle, not trying to attract attention.
- adj. (photography) Dark, with little or no fill light and high lighting ratio.
restrained
- adj. Held back, limited, kept in check or under control.
- v. simple past tense and past participle of restrain.
subdued
- adj. Conquered; overpowered; crushed; submissive; mild.
- adj. Not glaring in color; soft and light in tone.
- v. simple past tense and past participle of subdue.
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