crosswise

Adjective

• in the shape of (a horizontal piece on) a cross

• lying or extending across the length of a thing or in a cross direction
  • a crosswise street
    
  • the crosswise dimension
    

Adverb

• transversely
  • the marble slabs were cut across
    

• not in the intended manner
  • things are going crosswise
    

Related words

• Synonyms: 
  across , crossways
• Antonyms: 
  lengthwise , lengthways