unreliableallegiance
nounUK /ˌʌnrɪˈlaɪəbəl əˈliːdʒəns/
US /ˌʌnrɪˈlaɪəbəl əˈliːdʒəns/
A promise to be loyal that you cannot really count on.
The king learned too late that his ally's unreliableallegiance would cost him the battle.
RELATED WORDS
OTHER MEANINGS
2. A bond of support that shifts or breaks when it becomes inconvenient.
The coalition was held together by unreliableallegiance and little else.
3. A show of commitment that is not backed by real action.
His unreliableallegiance to the team faded as soon as they started losing.
4. An attachment that cannot be trusted to last through hard times.
The village's unreliableallegiance to the old lord ended when the new army arrived.