- simple
- /'sImpFl/ adjective
1 PLAIN without a lot of decoration or unnecessary things added: a simple dress | simple but delicious food | a building constructed in a simple, classic style2 EASY not difficult or complicated: I'm sure there's a perfectly simple explanation. | a simple but effective solution to the problem | it's not as simple as that spoken (=used to say that something is not as easy as someone thinks it is): I wish we could offer you more money but I'm afraid it's not as simple as that.3 ONLY (only before noun) not complicated or involving anything else: Completing the race is not just a simple matter of physical fitness. | We can't do it, for the simple reason that we don't have enough time. | the simple truth/fact is (=used to emphasize the truth about something): The simple truth is, he isn't good enough for the job. | pure and simple (=without any other reason or feature): Their motive was greed, pure and simple.4 NOT HAVING MANY PARTS consisting of only a few necessary parts: Bacteria are simple forms of life. | A knife is a simple tool.5 ORDINARY honest and ordinary and not special in any way: Joe was just a simple farmer.6 the simple life informal life without all the problems of the modern world, especially life in the countryside, without too many possessions, or modern machines7 UNINTELLIGENT (not before noun) not intelligent: I'm afraid old Luke's a bit simple.
Longman dictionary of contemporary English. 2004.