| mouse-colored |
| self-effacing(adjective, quiet, modest, humble, meek) |
| unassuming(adjective, quiet, modest, humble, shy) |
| ashen(adjective, dull, soft, obscure, lead) |
| fainthearted(nervous, shy, worried, fearful, afraid) |
| leaden(adjective, dull, soft, obscure, lead) |
| nervous(adjective, shy, worried, fearful, afraid) |
| self-conscious(adjective, feel doubt) |
| silent(adjective, quiet, soft, still, hushed) |
| smoky(adjective, dull, lead, grim, gray) |
| somber(adjective, dull, soft, obscure, lead) |
| afraid(adjective, upset, weak, nervous, shy) |
| anxious(adjective, upset, shy, worried, afraid) |
| chicken(adjective, upset, nervous, shy, worried) |
| colorless(adjective, quiet, drab) |
| coward |
| cowardly(adjective, nervous, shy, fearful) |
| cowering(adjective, weak, nervous, shy, meek) |
| demure(nervous, shy, meek, fearful, timid) |
| dingy(adjective, dull, soft, obscure, lead) |