forming or having the nature of a turning point or crisis
urgently needed; absolutely necessary
at or of a point at which a property or phenomenon suffers an abrupt change especially having enough mass to sustain a chain reaction
being in or verging on a state of crisis or emergency
characterized by careful evaluation and judgment
marked by a tendency to find and call attention to errors and flaws
of or involving or characteristic of critics or criticism
feeling or expressive of gratitude
having or showing appreciation or a favorable critical judgment or opinion
