dotty

形容词 dotty:

1. informal or slang terms for mentally irregular
   同义词：balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, daft, fruity, haywire, kooky, kookie, loco, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky
2. marked by foolish or unreasoning fondness
   同义词：crazy, gaga, enamored, infatuated, in love, smitten, soft on, taken with

1. That's my dotty points.
   那是我的弱点。
2. Not another of your dotty ideas for making money!
   你不要再出那些赚钱的馊主意了！
3. She's dotty about this latest boyfriend.
   她非常喜欢这个新交的男朋友。
4. She was getting a bit dotty and could never be left alone.
   她越来越见傻，决不可无人照看。

dot.ty

adj.（形容词）
dot.ti.er,dot.ti.est

Mentally unbalanced; crazy.
疯狂的；神经不正常的
Amusingly eccentric or unconventional.
古怪的或不合常规的
Ridiculous or absurd:
可笑的或荒唐的：
例句：
a dotty scheme.
荒唐的计划

Having a feeble or unsteady gait; shaky.
不稳的，虚弱的；摇晃的
Obsessively infatuated or enamored.
非常热情或着迷的

来源：
Probably alteration of Scots dottle [silly]
可能为 苏格兰语 dottle的变化 [傻的]
from Middle English doten [to dote]
源自 中古英语 doten [昏聩]

【引伸】
dot.tily
adv.（副词）
dot.tiness
n.（名词）