withoutreason
adverbUK /wɪˈðaʊt ˈriːzən/
US /wɪˈðaʊt ˈriːzən/
Doing something without reason means doing it for no clear cause.
The boy started laughing without reason, which made everyone curious.
RELATED WORDS
OTHER MEANINGS
2. Acting in a way that has no sensible explanation.
She quit her job without reason, surprising all her coworkers.
3. Happening suddenly and with no obvious cause.
The lights flickered without reason during the night.
4. Behaving in a way that seems random or unplanned.
He chose a new path without reason and got lost in the woods.