· be a mystery or bewildering to; "This beats me!"; "Got me--I don't know the answer!"; "a vexing problem"; "This question really stuck me"

Synonym(s): perplex, vex, stick, get, mystify, baffle, beat, pose, bewilder, flummox, stupefy, nonplus, gravel, amaze, dumbfound

Hypernym(s): confuse, throw, fox, befuddle, fuddle, bedevil, confound, discombobulate

· be uncertain about; think about without fully understanding or being able to decide; "We puzzled over her sudden departure"

Hypernym(s): chew_over, think_over, meditate, ponder, excogitate, contemplate, muse, reflect, mull, mull_over, ruminate, speculate

· filled with bewilderment; "at a loss to understand those remarks"; "puzzled that she left without saying goodbye"

Synonym(s): at_a_loss, nonplused, nonplussed