close enough for government work

Etymology
Originally nonironic (meaning good enough to meet especially high standards); later evolved to mean good enough, though only barely.

Adjective

 * 1)  Adequate; acceptable as government work, imperfect but not worth the time nor effort of improving.
 * 2)  Acceptable; equivalent to government work, neither worse nor better.

Synonyms

 * See Thesaurus:satisfactory