senseless
adj.adj. happening for no good reason or being very foolish. It describes something that is cruel or stupid because it does not make sense.
adj. lacking meaning, purpose, or common sense; often describes acts of violence or extreme folly. Frequently used to characterize events that seem avoidable or irrational.
The two neighbors had a senseless argument over a fence.
The community struggled to understand the senseless destruction of the local park over the weekend.
The diplomat lamented the senseless loss of life during the conflict, arguing that the territorial dispute could have been resolved through peaceful mediation.
From sense + -less. Compare Saterland Frisian sinloos (“senseless, foolish”).
Often used predicatively after linking verbs like 'seem' or 'feel', or attributively to modify nouns like 'violence' or 'tragedy'.