Synonyms for Cool

Synonyms starting with letter O

• offish

  attitude, aloof, stand-offish
• offhand

  unfriendly, aloof
• offended

  annoyed, aloof, state
• outstanding

  excellent
• okay
• out-of-sight
• out of this world
• objective
• oxygenate
• out of sight
• obdurate
• orderly
• overconfident
• overbold
• off

  stand-offish
• original
• offend
• obstruct
• on the beam
• on to
• obstinate
• ok
• orbicular
• overpower
• 

  overcome
• open-minded
• open
• on same wavelength
• oppose
• obliging
• out-of-this-world
• obviate
• oblivious
• one-dog night
• overwhelm
• optimum
• overlook
• omit
• ostracize
• overbearing