Synonym of good enough: acceptable, imperfect but adequate for the purpose.

Any girl who has started menstruating is old enough to have sex or start having children

(idiomatic, informal) An excessive quantity.

Just the right amount is as good as more than enough: there is no value in excess.

(idiomatic, informal) Good enough.

(idiomatic) Supremely beautiful; aesthetically pleasing.

(idiomatic) Greatly enjoys; likes a lot.

Used other than figuratively or idiomatically: see old, enough, vote. / (idiomatic, humorous, informal) old; decrepit.

Synonym of enough is enough

(rare) Alternative form of big enough and ugly enough