"conservative clothes" is correct and usable in written English.
It can be used to refer to clothing that is typically modest and not overly revealing. For example, "Jill always prefers to wear conservative clothes to job interviews."
suggested more conservative clothes.
Wear more conservative clothes than you would otherwise.
He wore smart but conservative clothes, being a dandy in the classic rather than the romantic mode.
French women still appear to be more comfortable with their femininity, capable of dressing sexily while wearing relatively conservative clothes.
My style aesthetic was that of a sensible adult, and I had an irrepressible penchant for fine tailoring and conservative clothes.
Marmol, who resembles a graying-at-the-temples Harry Hamlin, favors similarly dapper, if more conservative, clothes in shades of gray.
Because Clinton stole conservatives' clothes on curbing welfare and stole swing voters' hearts by harping on hope, many approve stealing the Clinton approach to campaigning.
She dressed Vanessa in clothes that were "simple and very tasteful" but with an "anal-retentive quality," while dressing Mark in conservative clothing that complements Vanessa's taste.
Most wear a hijab, or head covering, and stylish but fairly conservative Western clothes extending to the ankles and wrists, even in warm weather.
Serious, ambitious Yale standards are still reflected in much of his conduct; in indiscriminate admiration for bustling success, in strong regard for conventional morality, in honest passion for accuracy; physically, in conservative, baggy clothes, white shirts with buttoned-down collars, solid-color ties.
We're used to seeing the 23-year-old in sweet, conservative, girly clothes.
