Colorless and Second class

Colorless adjective - Lacking an addition of color.

Second class and colorless are semantically related In some cases you can replace phrase "Second class" with "Colorless", this terms are similar.

Nearby Words: color, colorful

Second class noun - Not the highest quality in a classification.

Colorless and second class are semantically related in low topic. Sometimes you can use "Colorless" instead an adjective phrase "Second class".