on again, off again

on again, off again

Irresolute; wavering in certainty or constancy; inconsistent. Commitment from the board regarding the merger of the two companies has been on again, off again since the plan was first proposed. Mike and I were pretty serious for about a year, but our relationship has been on again, off again ever since we graduated.
See also: again, off, on
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

on again, off again

 and off again, on again
uncertain; indecisive. I don't know about the picnic. It's on again, off again. It depends on the weather. Jane doesn't know if she's going to look for a new job. She's off again, on again about it.
See also: again, off, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

on again

see under off and on.
See also: again, on
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.
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