Growing out of, or depending on, custom or tacit agreement; sanctioned by general concurrence or usage; formal.
Based upon tradition, whether religious and historical or of artistic rules.
Abstracted; removed from close representation of nature by the deliberate selection of what is to be represented and what is to be rejected; as, a conventional flower; a conventional shell. Cf. Conventionalize, v. t.
Who knows what true loneliness is - not the conventional word but the naked terror? To the lonely themselves it wears a mask. The most miserable outcast hugs some memory or some illusion. Joseph Conrad
Conventional people are roused to fury by departure from convention, largely because they regard such departure as a criticism of themselves. Bertrand Russell
Sanity is only that which is within the frame of reference of conventional thought. Erich Fromm
Community organizing is all about building grassroots support. It's about identifying the people around you with whom you can create a common, passionate cause. And it's about ignoring the conventional wisdom of company politics and instead playing the game by very different rules. Tom Peters