dud dud /ˈdʌd/

adjective

1. Failing to detonate; especially not charged with an active explosive  ( dud )
   failing to detonate; especially not charged with an active explosive
    He stepped on a dud mine
   he stepped on a dud mine
   

noun

1. An event that fails badly or is totally ineffectual  ( bomb , dud , turkey , clunker [Informal, N. American] )
   an event that fails badly or is totally ineffectual
    The first experiment was a real turkey
   the first experiment was a real turkey
    The meeting was a dud as far as new business was concerned
   the meeting was a dud as far as new business was concerned
   
2. An explosion that fails to occur  ( dud , misfire )
   an explosion that fails to occur
   
3. Someone who is unsuccessful  ( dud , flop [Informal] , washout , clunker [Informal, N. American] )
   someone who is unsuccessful
   
   

 off-white off-white /ɔːf ˈwaɪt/

adjective

1. Of something having a color tending toward white  ( off-white , whitish )
   of something having a color tending toward white
   

noun

1. A shade of white the color of bleached bones  ( bone , off-white , pearl , ivory )
   a shade of white the color of bleached bones
    The wedding dress was a shade of ivory, matching the vintage theme perfectly.
   The wedding dress was a shade of ivory, matching the vintage theme perfectly.
   
   

 incrustation incrustation /ˌɪnkrəˈsteɪʃən/

noun

1. A decorative coating of contrasting material that is applied to a surface as an inlay or overlay  ( encrustation , incrustation )
   a decorative coating of contrasting material that is applied to a surface as an inlay or overlay
   
   
2. A hard outer layer that covers something  ( crust , encrustation , incrustation )
   a hard outer layer that covers something
   
3. The formation of a crust  ( encrustation , incrustation )
   the formation of a crust
   
   

 slider slider /ˈslaɪdɝ/

noun

1. A fastball that curves slightly away from the side from which it was thrown  ( slider )
   a fastball that curves slightly away from the side from which it was thrown
   
2. Freshwater turtle of United States and South America; frequently raised commercially; some young sold as pets  ( Pseudemys scripta , slider , yellow-bellied terrapin )
   freshwater turtle of United States and South America; frequently raised commercially; some young sold as pets
   
   
3. Someone who races the luge  ( luger , slider )
   someone who races the luge
   
4. A person who slips or slides because of loss of traction  ( skidder , slider , slipper )
   a person who slips or slides because of loss of traction