Without reservation is a phrase that means to do something without any hesitation or doubt. The crossword solutions for this term are GLADLY (6 letters), WHOLLY (6 letters), HEARTY (6 letters), WHOLEHOG (8 letters), and OPENHEARTEDLY (13 letters). All of these words can be used to describe an action taken without reservation, as they all imply enthusiasm and willingness. GLADLY and WHOLLY mean to do something with joy and enthusiasm, while HEARTY and WHOLEHOG suggest doing something with great enthusiasm and commitment. OPENHEARTEDLY implies doing something with an open heart and without any reservations.