1) Colorless; timid 2) Drab and colorless 3) Far from stylish 4) Infested with mice 5) Meek 6) Meek and timid 7) Meek, quiet and timid 8) Mousey 9) Quiet 10) Quiet and timid 11) Shy and quiet 12) Terribly timid 13) Timid 14) Timidly quiet Found on https://www.crosswordclues.com/clue/mousy
resembling or suggesting a mouse, as in color or odor. · drab and colorless. · meek; timid: A drill sergeant can't be mousy! · quiet; noiseless: a mousy tread. · infested with mice. Found on https://www.infoplease.com/dictionary/mousy