
Behindhand
Negative Implication
Using 'behindhand' suggests a failure to meet expectations or deadlines.

I'm so behindhand on my project; the teacher will be disappointed.
Not Just Time
'Behindhand' can also mean delayed in progress, not only being late timewise.

Despite his efforts, he was still behindhand in understanding the new topics.
Social Context
In social situations, 'behindhand' can be perceived as impolite or disrespectful.

He was behindhand to the dinner party, making the host anxious.
Compare with
BelatedDelayLagLateOverdueSlackSlowTardy
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