madness; insanity; madman; mania; craze; obsession
mistake; error; accident; mishap; improper conduct (e.g. between man and woman); indiscretion
misunderstanding; mistaken idea; wrong guess
wildly different (in ability, strength, etc.); on another level; in a different league; of different heights; uneven
mistaking one person for another; (case of) mistaken identity
out-of-place; inappropriate; sticking out like a sore thumb; produced at an unorthodox location
crossing without meeting (e.g. letters in the post, people on the road); going astray; difference of opinion; misunderstanding; estrangement
great difference; major mistake
an order of magnitude higher; off by a digit; in a different league; unbelievable; incomparable; unimaginable
wrong (guess or estimate); misdirected; irrelevant; off the point
misunderstanding; misapprehension; misconception; false impression; wrong idea
passing each other; missing (meeting) each other; failing to meet; (being at) cross purposes; discrepancy
passing each other (without meeting); entering somewhere just after someone had left; coming in just as someone had gone out; inserting in the wrong order
variation in color (colour); having a different color
cramp; sprain; unreasonableness; absurdity; illogical; unreasonable
crossing without meeting (e.g. letters in the post, people on the road); going astray; difference of opinion; misunderstanding; estrangement
half- (sibling by a different mother); paternal
difference; disagreement; conflict; clash; discrepancy; inconsistency
mistaken memory; trick of the memory; slip of the memory
difference in social standing; difference in social position
mistaken idea; misunderstanding; wrong impression
imprudence; misbehavior; misbehaviour; misunderstanding
outside one's field; out of one's line; (sibling) from a different mother
barely miss (meeting someone, catching a train, etc.)
putting (up) in the wrong place; hanging in the wrong place; disagreement; conflict; crossing paths without meeting; missing each other
misunderstanding; misperception; difference in understanding
wrong idea; delusion; indiscretion; false step; misstep
misremembering; remembering incorrectly; mistaken memory
failing to recognize; failing to recognise; mistaking for
misjudgment; misjudgement
off-topic (on an online thread)
half- (sibling by a different father); uterine; maternal
passing each other (without meeting); entering somewhere just after someone had left; coming in just as someone had gone out
barking up the wrong tree; calling at the wrong house
act of praying or performing an incantation so that a bad dream does not come true
diagonal cross; x-shaped cross
error in judgment; error in judgement
kink in one's neck; sprained neck
miscalculation; disappointment
parent's cousin; first-cousin once removed
decorative cutting technique using alternating diagonal slices (for cucumbers, udo, etc.); cross-cut
(being in the) wrong category; being wrongly categorized