passable

That may be passed or traversed.

Tolerable; adequate; no more than satisfactory.

The yawning gap in neuroscientists’ understanding of their topic is in the intermediate scale of the brain’s anatomy. Science has a passable knowledge of how individual nerve cells, known as neurons, work. It also knows which visible lobes and ganglia of the brain do what. But how the neurons are organised in these lobes and ganglia remains obscure.

AIs are no longer just producing passable five-paragraph essays. Now they’re excelling at the SAT, “earning” a score of 1410.

able to "pass", or be accepted as a member of a race, sex or other group to which society would not otherwise regard one as belonging.

The idea of something, or someone, being unusual and sexual is intoxicating. I concluded that if I ever met a very passable transsexual and we were attracted to one another, I'd go bisexual and pursue the relationship.