Afraid and Unassertive

Afraid adjective - Filled with fear or dread.

Unassertive and afraid are semantically related In some cases you can use "Unassertive" instead an adjective "Afraid".

Unassertive adjective - Inclined to timidity or lack of self-confidence.

Afraid and unassertive are semantically related in shy topic. Sometimes you can use "Afraid" instead an adjective "Unassertive", if it concerns topics such as timid, quiet and self-conscious.