Circular is a synonym of broadsheet.

As adjectives the difference between circular and broadsheet

is that circular is of or relating to a circle while broadsheet is in the format of a broadsheet.

As nouns the difference between circular and broadsheet

is that circular is a printed advertisement, directive, or notice intended for mass distribution; a flyer while broadsheet is a newspaper having pages of standard dimensions (as opposed to a tabloid ), especially one that carries serious treatment of news.

As nouns the difference between foreboding and threatening

is that foreboding is a sense of evil to come while threatening is an act of threatening; a threat.

As adjectives the difference between foreboding and threatening

is that foreboding is of ominous significance; serving as an ill omen; foretelling of harm or difficulty while threatening is presenting a threat; menacing; frightening.

As verbs the difference between foreboding and threatening

is that foreboding is present participle of lang=en while threatening is present participle of lang=en.

As nouns the difference between idiosyncrasy and antic

is that idiosyncrasy is a behavior or way of thinking that is characteristic of a person while antic is a grotesque representation of a figure; a gargoyle.

As an adjective antic is

grotesque, incongruous.

As a verb antic is

to perform antics.

Wound is a related term of impairment.

As nouns the difference between wound and impairment

is that wound is an injury, such as a cut, stab, or tear, to a (usually external) part of the body while impairment is the result of being impaired; a deterioration or weakening; a disability or handicap; an inefficient part or factor.

As a verb wound

is to hurt or injure (someone) by cutting, piercing, or tearing the skin or wound can be (wind).

Trepidation is a related term of perturbation.

As nouns the difference between trepidation and perturbation

is that trepidation is trembling while perturbation is (uncountable) agitation; the state of being perturbed.

Cost is a synonym of sacrifice.

As nouns the difference between cost and sacrifice

is that cost is manner; way; means; available course; contrivance or cost can be amount of money, time, etc that is required or used or cost can be (obsolete) a rib; a side while sacrifice is the offering of anything to a god; consecratory rite.

As verbs the difference between cost and sacrifice

is that cost is to incur a charge; to require payment of a price while sacrifice is to offer (something) as a gift to a deity.

As adjectives the difference between lacklustre and boring

is that lacklustre is british an alternative spelling of lang=en while boring is causing boredom.

As a noun boring is

a pit or hole which has been bored.

As a verb boring is

present participle of lang=en.

As nouns the difference between development and generation

is that development is the process of developing; growth, directed change while generation is the fact of creating something, or bringing something into being; production, creation.

Magnitude is a related term of width.

As nouns the difference between magnitude and width

is that magnitude is (uncountable|countable) the absolute or relative size, extent or importance of something while width is the state of being wide.

Serenely is a related term of temperately.

As adverbs the difference between serenely and temperately

is that serenely is in a serene manner while temperately is in a thoughtfully measured or regulated manner, eschewing extremes.