1. impossible to measure, evaluate, or determine with certainty
Usage: formal

1. something that cannot be measured or evaluated
Usage: formal

Examples

• The long-term effects of the policy remain imponderable.
• Human emotions are often imponderable factors in business decisions.
• The coach faced several imponderables before the championship game.
• Weather conditions present an imponderable in outdoor event planning.
• The artist’s influence on future generations is an imponderable.
• Economic forecasters struggle with numerous imponderables.
• The imponderable nature of public opinion makes polling difficult.