✅ Sepia is a brown pigment and describes things that are grayish brown or olive brown (The low light made the trees look almost sepia).

✅ Sorrel describes things that are a light reddish brown (A sorrel sweater is the perfect choice for this season).

✅ While both sepia and sorrel describe brown tones, sepia generally suggests cooler browns, whereas sorrel suggests a warmer brown.

✅ Russet describes something that is one of a range of brown-toned, autumnal colors, including yellowish and reddish browns and light browns that are neither red nor yellow (Russet leaves covered the street).

✅ Titian describes things that are a reddish or golden brown (She had flowing titian hair).

✅ While russet derives from an old French word related to “red,” titian is named after an Italian painter who often painted red-haired women. Describing something as titian suggests a warm, romantic, glowing tone, as the paintings of Titian exude.

✅ Sensitivity refers to the state of being sensitive or easily affected by things (His sensitivity was a cause of distress to him).

✅ Reactivity means the state of being reactive or tending to react (Their emotional reactivity was a symptom of intense anxiety).

✅ Sensitivity and reactivity both suggest being impacted emotionally by things that may not affect others as extremely.

✅ Reactivity emphasizes frequently responding to this emotional impact in an intense way or in a way that affects others. Sensitivity emphasizes the way you feel rather than the way you respond.