SYNONYMY NOTE: favorable applies to that which is distinctly helpful or advantageous in gaining an end [a favorable climate for citrus fruits]; auspicious refers to something regarded as a good omen of some undertaking [he made an auspicious debut]; propitious is now usually applied to a circumstance or a time that appears favorable for doing
or beginning something [a propitious moment]
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'favorable'ME < OFr < L favorabilis