then/there again

then again

On second thought; from a different, conflicting, or contradictory point of view. This deal could really help the business get out of debt. Then again, you'd just be indebted to the government instead, so maybe it's not the best solution. I'd love to upgrade our car. Then again, there are lots of other things around the house that we need to replace more urgently.
See also: again
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

then again

Also, but then. On the other hand, an opposite possibility. For example, I think it'll arrive tomorrow; then again, it may not, or We think you'll like this restaurant, but then again, not everyone does, or The play was a bit dull, but then she's a great actress.
See also: again
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

then/there aˈgain

(informal) used for introducing an extra piece of information which explains something or gives another explanation for something: I thought he liked me, but then again maybe he didn’t.
See also: again, there
Farlex Partner Idioms Dictionary © Farlex 2017

then again

From another standpoint; on the other hand: I need a vacation. Then again, so do my coworkers.
See also: again
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
See also: