- appropriate, favorable, or suitable: an opportune phrase for the occasion.
- occurring or coming at an appropriate time; well-timed: an opportune warning.
- occurring at a time that is suitable or advantageous
- fit or suitable for a particular purpose or occurrence
adj.c.1400, from Old French opportun and directly from Latin opportunus “fit, convenient, suitable, favorable,” from the phrase ob portum veniens “coming toward a port,” in reference to the wind, from ob “to, toward” (see ob-) + portus “harbor” (see port (n.1)). Related: Opportunely.