wool-gathering
noun
• indulgence in aimless thought or dreamy imagining; absent-mindedness.
• "a vacant daze that leads to formless wool-gathering"
Similar:
daydreaming,
dreaming,
building castles in the air,
building castles in Spain,
reverie,
musing,
abstraction,
preoccupation,
brown study,
distraction,
inattention,
absent-mindedness,
forgetfulness,
wool-gather
verb
• indulge in aimless thoughts or daydreams.
• "now wasn't the time to wool-gather about her love life"