WordWeb Online

1. Encouraging, approving or pleasing
   "a favorable reply"; "he received a favorable rating"; "listened with a favorable ear"; "made a favorable impression";
   - favourable [Brit, Cdn]
    
2. (of winds or weather) tending to promote or facilitate
   "the days were fair and the winds were favorable";
   - favourable [Brit, Cdn]
    
3. Presaging or likely to bring good luck
   "a favorable time to ask for a raise";
   - golden, favourable [Brit, Cdn], lucky, prosperous
    
4. Inclined to help or support; not antagonistic or hostile
   "a government favorable to our interests";
   - friendly, well-disposed, favourable [Brit, Cdn]
    
5. Occurring at a convenient or suitable time
   - favourable [Brit, Cdn]

See also: affirmative, affirmatory, amicable, approbative, approbatory, approving, complimentary, convenient, following, good, indulgent, plausive, propitious

Antonym: unfavorable [US]

Encyclopedia: Favorable