1. Base and cowardly 
2. Resembling a cur; snarling and rude

See also: currishly, ignoble, ill-natured

• unbeaten
• unbecoming
• unbecomingly
• unbecomingness
• unbefitting
• unbeholden
• unbeknown
• unbeknownst
• unbelief
• unbelievable
• unbelievably
• unbeliever
• unbelieving
• unbelievingly
• unbeloved
• unbelt
• unbelted
• unbend
• unbendable
• unbending
• unbeneficed
• unbent
• unbiased
• unbiassed
• unbidden