Anodyne means so mild and inoffensive that it could upset nobody. Carefully saying nothing at all.
It is a criticism in every modern use, since an anodyne statement or an anodyne response is one designed to avoid saying anything worth objecting to, and press offices produce them by the yard. The original medical sense is quite different and quite literal, since an anodyne was a painkiller. The shift from soothing to bland is one of the neater journeys in English.
1adjectiveanodyneDeliberately inoffensive and lacking any substance.
“The reply was so anodyne it might have been written by a machine.”
Also accepted in games: bland
Anodyne means painless. Greek an, without, joins odynē, pain, so an anodyne was a painkiller, and the sense of bland and inoffensive came later through French.
French
anodin — harmless, trivial
Ancient Greek
ἀνώδυνος — free from pain
Middle English
anodine
English, today
anodyne
Built from
From Middle English anodine, from Medieval Latin anōdynos (“stilling or relieving pain”), from Ancient Greek ἀνώδυνος (“free from pain”), from ἀν- (“without”) + ὀδύνη (“pain”). Adjective sense “noncontentious” probably through French anodin (“harmless, trivial”), of same origin.
Etymology from Wiktionary, CC BY-SA