he is acting irrationally or appears to be mentally unstable
Idioms Starting with "H"
Browse all idioms that begin with the letter H.
to remain neutral or indecisive in a situation requiring a choice
to manage to stay afloat or cope with difficulties, especially financially
significantly better or superior compared to others
to quickly escape from a dangerous or undesirable situation
to be lost in thought or fantasies, ignoring reality or practical matters
to be completely in love or infatuated
to decline or worsen in quality or condition
an advantage gained by starting before others
to confront a situation directly and without avoidance
to provide a warning or notification about something
to suggest that there will be consequences or punishments for mistakes made by individuals.