There are many things to look for when studying the thumb, which is certainly one of the
most important indicators on the hand. As with the fingertips, note whether the thumb's
tip is square, rounded or pointed, thus indicating a bias toward a practical, artistic or
Stiff thumb - that is, one that is fairly rigid and inflexible so the tip will not bend
backward to any noticeable degree - indicates that the person is stubborn, has fixed
ideas, does not easily adapt to changing circumstances, derives more satisfaction from
saving money than from spending it and does not tend to be naturally generous.
Flexible thumb is found when the nail phalange bends back without resistance. It
indicates a generous-natured person who enjoys giving or spending and is versatile,
adaptable, restless, changeable, tolerant, flexible, interested in many things and willing
to listen to new ideas.
Large thumb indicates strength, achievement, capability, self-reliance, confidence and
inner power. It belongs to a person who can be a leader, a doer. A large thumb adds its
strength to other factors in the hand.
Small thumb indicates a weak character - one who will follow rather than lead. There is
little determination or will to win so this person is easily defeated. A small thumb
weakens good qualities elsewhere on the hand.
Medium thumb is the average, neither large nor small, so it endows its owner with the
potential to achieve an average degree of success.
WILLPOWER AND REASON
The first phalange of the thumb (the one with the nail) relates to willpower and
determination; the second phalange relates to reason and logic.
In average hands the second phalange is slightly longer than the nail phalange,
indicating normal balance of willpower and reason, found in people who formulate
plans and then have the determination to carry them through to a successful
conclusion. However, if the second phalange is noticeably longer than the nail
phalange, the person thinks about all the things and plans which he intends to
put into action but does not have sufficient drive, determination and willpower to
translate those ideas into practical reality.
When the nail phalange is longer than the second phalange, the person's reason
is overshadowed by willpower, so he or she is the type who acts first and thinks
afterwards. This type can be too willful and determined for their own good.
Courtesy: Speed Palmistry ebook