adjective
[ only before noun ] ( disapproving ) ( of people ) behaving in a particular way or doing a particular activity only when it is pleasant for them :
a fair-weather friend (= sb who stops being a friend when you are in trouble)
adjective
[ only before noun ] ( disapproving ) ( of people ) behaving in a particular way or doing a particular activity only when it is pleasant for them :
a fair-weather friend (= sb who stops being a friend when you are in trouble)
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005