borderline acceptable

Translations
на грани приемлемого
His behavior was borderline acceptable at the meeting.
Его поведение на собрании было на грани приемлемого.
Definitions
A term used to describe something that is just barely within the limits of what is considered acceptable, often implying that it is not fully satisfactory or may be subject to criticism.
Words
borderline

adverb
на грани
acceptable

adjective
приемлемый