unaccountably

For no reason

Unaccountably means in a way that cannot be explained or understood: She felt unaccountably nervous.

The word signals that something defies obvious reason—an emotion arrives without clear cause, a person behaves contrary to expectation: He was unaccountably absent from the meeting.

It often carries a note of puzzlement or mild wonder at the inexplicable.

inexplicable

inexplicably

Beyond rational understanding

strangely · oddly · curiously · peculiarly · bizarrely · unfathomably · incomprehensibly · bewilderingly · perplexingly · confoundingly

irrational

unreasonably

Beyond logical limits

unjustifiably · senselessly · absurdly · irrationally · arbitrarily · capriciously · whimsically · unpredictably · erratically · randomly

Opposites
explicability

unaccountablyunderstandably

For obvious reasons

predictably · logically · comprehensibly · reasonably · rationally

responsibility/answerability

unaccountablyaccountably

With obligation to explain

responsibly · transparently · traceably · justifiably · defensibly

Family

unaccountable, unaccountability

Familiarity
Top 500,000
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Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G