1. Appropriate or proper in a specific situation: "He read an apropos passage to the class from the author’s new book."
2. At an opportune time: "There is never an apropos time to tell a child that a favorite pet has died."
3. Being at once opportune and to the point; being relevant: "It is very apropos to discuss going on a diet after an indulgent weekend of eating."
4. Etymology: from French à propos, "to the purpose" from propos, "purpose, plan", from Latin propositium, past participle of proponere, "to set forth, to propose".